CH53858A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Device for indicating from the inside to the outside of a room, a specific time
Assignee: Charles Dubois
•
Filing: 1910-10-20
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Granted: —
•
Expires: 1930-10-20
Abstract
No abstract record available.
Inventors
- 👤 Charles Dubois
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-30 09:28
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/02
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References Cited (Backward Citations)
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