Patent DE692996C successfully refreshed from Google Patents.
DE692996C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
made of copper or its alloys
Assignee: Osram GmbH
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Filing: 1939-02-10
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Granted: 1940-06-29
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Expires: 1959-02-10
Abstract
No abstract record available.
Inventors
- 👤 Dr Phil Willy Boettcher
- 👤 Karl Doehring
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 05:24
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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