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FR828107A Expired / Lapsed FR ⏱️ 0.0 years remaining

Training in collimators

Assignee: Charles Edouard Pierre Gourdou
•
Filing: 1937-01-19
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Granted: 1938-05-11
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Expires: 1957-01-19
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Abstract

No abstract record available.

Inventors

  • 👤 Charles Edouard Pierre Gourdou

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-23 23:03
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/14

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