Patent CH345797A successfully refreshed from Google Patents.
CH345797A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Photographic process
Assignee: Johnson Richard N
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Filing: 1955-08-22
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Granted: —
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Expires: 1975-08-22
Abstract
No abstract record available.
Inventors
- 👤 R Craig Dwin
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-28 15:28
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/725
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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