FR551673A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Apparatus for examining transparent substances such as glass, etc.
Assignee: AGC Inc
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Filing: 1922-04-03
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Granted: 1923-04-11
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Expires: 1942-04-03
Abstract
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Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 15:10
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0016
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