Question: Who invented the AGA cooker and was instrumental to the success of AGA AB?

full_context: Document 1: Gustaf Dalén: Nils Gustaf Dalén (30 November 1869 – 9 December 1937) was a Swedish Nobel Laureate and industrialist, the founder of the AGA company and inventor of the AGA cooker and the Dalén light. In 1912 he was awarded the Nobel Prize in Physics for his "invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys".
Document 2: Aga saga: The Aga saga is a subgenre of the family saga genre of literature. The genre is named for the AGA cooker, a type of stored-heat oven that came to be popular in medium to large country houses in the UK after its introduction in 1929. It refers primarily to fictional family sagas dealing with British "middle-class country or village life". The nickname "Aga saga" is sometimes used condescendingly about this type of fiction. The term was incorporated into the "Oxford Companion to English Literature" in 2000.
Document 3: Getinge Group: Getinge AB is a global medical technology company, founded in Sweden in 1904. The firm provides equipment and systems within healthcare and life sciences. The company was formerly organised in three business areas: Infection Control (trading as Getinge), Extended Care (ArjoHuntleigh) and Medical Systems (Maquet, the world's largest maker of surgical tables), but announced it would become a single brand company, operating under the brand Getinge, on March 20 2017. The company's president and CEO is Mattias Perjos. Carl Bennet is the company's chairman. Getinge's shares have been listed on the OMX Nordic List in Stockholm since 1993 and have formed part of the OMXS30 index since July 2009.
Document 4: Community Cooker: The Community Cooker (Kiswahili translation on "Jiko ya Jamii") is a stove designed to produce safe, clean and cheap energy for cooking from rubbish. The Community Cooker was invented by Jim Archer, the Chairman of Planning Systems Services Ltd. (PLANNING) to address the accumulation of rubbish throughout Kibera, while providing relief to the deforestation and ground water pollution.
Document 5: Mond gas: Mond gas is a cheap coal gas that was used for industrial heating purposes. Coal gases are made by decomposing coal through heating it to a high temperature. Coal gases were the primary source of gas fuel during the 1940s and 1950s until the adoption of natural gas. They were used for lighting, heating, and cooking, typically being supplied to households through pipe distribution systems. The gas was named after its founder, Ludwig Mond.
Document 6: Starlite: Starlite is a material claimed to be able to withstand and insulate from extreme heat. It was invented by amateur chemist and hairdresser Maurice Ward (1933–2011) during the 1970s and 1980s, and received much publicity in 1993 thanks to coverage on the science and technology show "Tomorrow's World". The name Starlite was coined by Ward's granddaughter Kimberly.
Document 7: Vacuum flask: A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings. Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, placed one within the other and joined at the neck. The gap between the two flasks is partially evacuated of air, creating a near-vacuum which significantly reduces heat transfer by conduction or convection.
Document 8: ASEA: Allmänna Svenska Elektriska Aktiebolaget (English translation: General Swedish Electric Company; Swedish abbreviation: ASEA) was a Swedish industrial company. In 1988 it merged with the Swiss company Brown, Boveri & Cie (BBC) to form ABB Group. ASEA still exists, but only as a holding company owning 50% of the ABB Group.
Document 9: Fireplace insert: Invented in 1896 by Joab R. Donaldson of Oliphant Furnace, Pennsylvania, US, the fireplace insert is a device inserted into an existing masonry or prefabricated wood fireplace. Joab was a 59-year-old coal miner and father of fourteen at the time of his patent. He came upon the idea as a means of using coke (a smokeless fuel made by the destructive distillation of certain types of coal) and incorporating the use of an electric blower to improve the efficiency. The selection of coke and coal tailings as a primary fuel enabled low income families to heat their Appalachian homes with small-size coal that they could easily dig for themselves in their own back yards.
Document 10: Cockcroft–Walton generator: The Cockcroft–Walton (CW) generator, or multiplier, is an electric circuit that generates a high DC voltage from a low-voltage AC or pulsing DC input. It was named after the British and Irish physicists John Douglas Cockcroft and Ernest Thomas Sinton Walton, who in 1932 used this circuit design to power their particle accelerator, performing the first artificial nuclear disintegration in history. They used this voltage multiplier cascade for most of their research, which in 1951 won them the Nobel Prize in Physics for "Transmutation of atomic nuclei by artificially accelerated atomic particles". Less well known is the fact that the circuit was discovered much earlier, in 1919, by Heinrich Greinacher, a Swiss physicist. For this reason, this doubler cascade is sometimes also referred to as the Greinacher multiplier. Cockcroft–Walton circuits are still used in particle accelerators. They also are used in everyday electronic devices that require high voltages, such as X-ray machines, television sets, microwave ovens and photocopiers.
Document 11: Peter Desaga: Peter Desaga was a German instrument maker at the University of Heidelberg who worked with Robert Wilhelm Bunsen. In 1855, Desaga perfected an earlier design of the laboratory burner by Michael Faraday into the Bunsen burner. The Desaga family held the right to market the burner for generations, as part of an agreement made with Bunsen. The Bunsen burner was essential to the invention of the spectroscope by Robert Wilhelm Bunsen and Gustav Robert Georg Kirchhoff.
Document 12: Bevolo Luci a Gas ed Elettrici: Bevolo Gas and Electric Lights (also called Bevolo or Bevolo Lights) is a family business that manufactures traditional and antique lighting. It was founded in 1945 by Andrew John Bevolo, a craftsman who worked to help build the famous New Orleans Higgins boats for World War II and the first Sikorsky helicopter. It is located in New Orleans' French Quarter. The current owner of Bevolo is Andrew John Bevolo III (Drew Bevolo), the grandson of its founder. The lights Bevolo manufactures are usually made from copper by hand. Bevolo lights are produced by hand-riveting and include copper and brass accessories. The company offers a wide variety of light fixtures, however, Bevolo produces other products as well, e.g. mailboxes.
Document 13: AGA cooker: The AGA cooker is a heat storage stove and cooker, which works on the principle that a heavy frame made of cast iron can absorb heat from a relatively low-intensity but continuously burning source, and the accumulated heat can then be used for cooking. Originally heated by slow-burning coal, the Aga cooker was invented in 1922 by the Nobel Prize–winning Swedish physicist Gustaf Dalén (1869–1937), who was employed first as the chief engineer of the Swedish AGA company (Swedish "Aktiebolaget Svenska Gasaccumulator", English "Swedish Gas Accumulator, Limited"). The cookers were first imported to Britain in 1929, and were first manufactured there under licence in the early 1930s. The cast-iron parts were first cast at the Coalbrookdale foundry in the 1940s, where they are still made by the Aga Rangemaster Group.
Document 14: AGA AB: AGA AB, previously "AB Gasaccumulator" and "AB Svenska Gasaccumulator", was a Swedish industrial gas company founded in 1904. Nobel Prize laureate Gustaf Dalén was instrumental in the success of the company. Important inventions included the AGA cooker and the Dalén light. In the 1990s AGA conceived and developed HiQ for specialty gases. In 2000, AGA was integrated into Linde AG.
Document 15: Steam digester: The steam digester (or bone digester, and also known as Papin’s digester) is a high-pressure cooker invented by French physicist Denis Papin in 1679. It is a device for extracting fats from bones in a high-pressure steam environment, which also renders them brittle enough to be easily ground into bone meal. It is the forerunner of the autoclave and the domestic pressure cooker.
ground_truth: Gustaf Dalén