Patent US2070834A successfully refreshed from Google Patents.
Patent FR892755A successfully refreshed from Google Patents.
FR892755A
Expired / Lapsed
FR
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Further training in devices intended to reproduce documents by photographic means
Assignee: Andre-Leon-Victor-Cl Debrie
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Filing: 1943-03-23
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Granted: 1944-05-19
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Expires: 1963-03-23
Abstract
No abstract record available.
Inventors
- 👤 Andre-Leon-Victor-Cl Debrie
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 23:32
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/521
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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