FR410263A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Advanced lens for optical instruments
Assignee: JEAN DE KONDEREFF
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Filing: 1909-10-19
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Granted: 1910-05-17
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Expires: 1929-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jean De Kondereff
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 09:26
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/02; G02B3/08; G02B23/00
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References Cited (Backward Citations)
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