FR1383756A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to optical filters intended to selectively capture the light passing through these filters
Assignee: Douglas Aircraft Co Inc
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Filing: 1963-05-31
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Granted: 1965-01-04
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Expires: 1983-05-31
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
2026-11-06 21:33
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/205; H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/896
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