FR834890A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to devices giving time indications
Assignee: Bror Arvid Daniel Nygren
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Filing: 1938-03-07
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Granted: 1938-12-05
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Expires: 1958-03-07
Abstract
No abstract record available.
Inventors
- 👤 Bror Arvid Daniel Nygren
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 13:36
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/24; G04B19/243; G04B19/24346; G04B19/2436; G04B19/24373
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