Search Results
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2 itemsLetter from Lee de Forest to Arnold O. Beckman
- 1936-Jul-02
Lee de Forest discusses testing Beckman's film-coating process with antimony. A sample of antimony paper is included.
- Addressee Beckman, Arnold O.
- Author De Forest, Lee, 1873-1961
- Subject Antimony, Metal coating
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2 itemsReceipt and memorandum of record
- Circa 1936
The receipt lists materials the De Forest Television Corporation received from Arnold O. Beckman. The memorandum concerns work Beckman performed for the American Television Corporation, the De Forest Television…
- Creator Of Work Beckman, Arnold O.
- Subject Scientific apparatus and instruments, Celluloid, Metal coating
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2 itemsLetter from Arnold O. Beckman to Arthur E. Freston
- 1934-May-28
Arnold O. Beckman provides an overview of the vacuum film-coating process developed for Lee de Forest. The process successfully coated film with magnesium, lead, bismuth, aluminum, and silver. The letter is apparently…
- Addressee Freston, Arthur E.
- Author Beckman, Arnold O.
- Subject Celluloid, Metal coating