CH219447A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Safety device for watch hairspring.
Assignee: Erismann Gerard
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Filing: 1941-03-14
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Granted: —
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Expires: 1961-03-14
Abstract
No abstract record available.
Inventors
- 👤 Erismann Gerard
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-28 21:29
CPC Classifications
G; G04; G04B; G04B18/00; G04B18/02; G04B18/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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