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FR734593A
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FR
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Device for looking for and detecting, in postage stamps, defects such as marks or water spots, tears, etc.
Assignee: RUDOLPH FRIEDL FA
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Filing: 1932-04-02
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Granted: 1932-10-24
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Expires: 1952-04-02
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 22:55
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/34; G01N33/346
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