CH297871A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Process for mitigating the level of contrast of photographic enlargements and means for carrying out this process.
Assignee: E Stettbacher Henry
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Filing: 1952-03-20
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Granted: —
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Expires: 1972-03-20
Abstract
No abstract record available.
Inventors
- 👤 E Stettbacher Henry
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-09 03:55
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/727
Claims Analysis
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References Cited (Backward Citations)
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