Image / Lee de Forest Patent # 841,386 with Device

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Title: Lee de Forest Patent # 841,386 with Device
Creator: Unknown
Contributing Institution: History San Jose Research Library
Collection: History San Jose Online Catalog
Rights Information: Please contact the contributing institution for more information regarding the copyright status of this object.
Description: Copy of patent application drawing for Wireless Telegraphy, No. 841,386, patented January 15, 1907. An tube (with id label 378) has been placed on top of the patent drawing for the photograph. The reverse of the photograph is stamped with Gerald F. J. Tyne's name and address, with the handwritten note, "Copy of photo obtained from George Clark."
Type: image
Format: Black & White
Identifier: 456F564B-0D30-450B-BD86-410889021326
2003-59-271
Subject: Audion
Patents (LCSH)
Wireless telegraph (LCSH)
Inventions
De Forest, Lee

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