CH477703A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Method and device for the photographic production of positive images, in particular portraits
Assignee: Autokopie Ag
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Filing: 1969-01-22
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Granted: —
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Expires: 1989-01-22
Abstract
No abstract record available.
Inventors
- 👤 Walter Dr Phil Grossmann
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-30 09:57
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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