I want to know the answer to the following question:
When did Just and Hanaman receive their patent for the tungsten filament lamp?
All the background I'm provided with is that "On 13 December 1904, Hungarian Sándor Just and Croatian Franjo Hanaman were granted a Hungarian patent (No. 34541) for a tungsten filament lamp that lasted longer and gave brighter light than the carbon filament.". Is that enough to answer the question?
Answer: yes