FR465592A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for binocular observation in a single-lens optical apparatus, adjustable to the distance of the observer's eyes
Assignee: LEON NUGUES
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Filing: 1913-12-02
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Granted: 1914-04-20
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Expires: 1933-12-02
Abstract
No abstract record available.
Inventors
- 👤 Leon Nugues
- 👤 Jules Carpentier
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 10:39
CPC Classifications
G; G02; G02B; G02B23/00
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