Patent CH91056A successfully refreshed from Google Patents.
CH91056A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Electric single-lens reflex light bulb.
Assignee: Alexander Ehrenzweig
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Filing: 1920-11-08
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Granted: —
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Expires: 1940-11-08
Abstract
No abstract record available.
Inventors
- 👤 Alexander Ehrenzweig
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-26 18:38
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/28; H01K1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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