FR1186348A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvement in artificial lighting devices for the dial of a timepiece
Assignee: Ernest Borel & Cie S A
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Filing: 1957-09-26
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Granted: 1959-08-20
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Expires: 1977-09-26
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 14:35
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/30; G04B37/00; G04B37/08; G04B37/081
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