Lloyd Espenschied Papers
name: label: Creator
content: Espenschied, Lloyd, 1889-? (electrical engineer)
label: Names
content: American Telephone and Telegraph Company
label: Names
content: Bell Telephone Laboratories
label: Former owner
content: National Museum of American History (U.S.). Division of Electricity and Modern Physics
label: Names
content: Telefunken Wireless Telegraph Company.
topic: label: Topic
content: Telegraph, Wireless
label: Topic
content: Radio
label: Topic
content: Telecommunication
label: Topic
content: Communication
label: Topic
content: Electrical engineering
acqinfo: label: Provenance
content: Immediate source of acquisition unknown.
creator: label: Creator
content: Espenschied, Lloyd, 1889-? (electrical engineer)
setName: label: See more items in
content: Lloyd Espenschied Papers
abstract: label: Summary
content: Papers document the history on telephonic and wireless communication.
bioghist: label: Biographical/Historical note
content: Espenschied was born in St. Louis and graduated from Pratt Institute in electrical engineering, 1909; on staff of the Telefunken Wireless Telegraph Company, 1909-10; worked for American Telephone and Telegraph Company in various capacities, 1910-34; directed high-frequency transmission development for Bell Telephone Laboratories, 1934-37. Chief interests seem to have been wide-band and carrier waves and wide band systems for communications.
physdesc: label: Extent
content: 11.3 Cubic feet
unitdate: label: Date
content: 1907-1969
custodhist: label: Ownership and Custodial History
content: Transferred from the Division of Electricity, 4/13/83.
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0013
objectType: label: Type
content: Collection descriptions
label: Type
content: Archival materials
arrangement: label: Arrangement
content: The collection is divided into 4 series.

Series 1: Subject files, 1907-1964

Series 2: Papers and talks by Espenschied, 1923-1969

Series 3: Patents, 1928-1953

Series 4: Correspondence, 1947-1959
processinfo: label: Processing Information
content: Collection processed by Robert Harding, 1982
scopecontent: label: Scope and Contents note
content: Miscellaneous information on the history of telephonic and wireless communication; considerable personal correspondence about men and events in the field, especially disputed claims of inventions, development, and the like.