Patent FR669880A successfully refreshed from Google Patents.
FR669880A
Expired / Lapsed
FR
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Interferometer
Assignee: Precision Mecanique SA
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Filing: 1929-02-19
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Granted: 1929-11-21
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Expires: 1949-02-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-22 23:35
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/02
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References Cited (Backward Citations)
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