FR647185A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Optical device for examining the inside of tubes
Assignee: Lincoln Electric Company France SA
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Filing: 1927-06-04
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Granted: 1928-11-21
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Expires: 1947-06-04
Abstract
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Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 18:29
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/24; G02B23/2407
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