FR420575A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Electric lamp with multiple colored effects
Assignee: GEORGES RENE DERRE
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Filing: 1909-11-26
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Granted: 1911-02-02
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Expires: 1929-11-26
Abstract
No abstract record available.
Inventors
- 👤 Georges-Rene Derre
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 03:33
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/08; F21V9/12; F21S; F21S10/00; F21S10/002
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