FR1279252A
Expired / Lapsed
FR
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Optical device at one or more focal lengths
Assignee: Adolphe De Candt
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Filing: 1960-07-18
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Granted: 1961-12-22
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Expires: 1980-07-18
Abstract
No abstract record available.
Inventors
- 👤 Adolphe De Candt
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 06:04
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; G02C7/08; G02C7/081; G02C7/085; G02C7/04; G02C7/041; G02C7/06
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References Cited (Backward Citations)
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