FR1547540A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device adaptable to optical devices to change the magnification ratio
Assignee: Optische Werke G Rodenstock
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Filing: 1967-08-25
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Granted: 1968-11-29
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Expires: 1987-08-25
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
2026-10-25 12:14
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18; G02B21/20; G02B21/22
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