Patent DE825205C successfully refreshed from Google Patents.
DE825205C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for reducing the tonal range in optical copying
Assignee: Individual
•
Filing: 1949-11-01
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Granted: 1951-12-17
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Expires: 1969-11-01
Abstract
No abstract record available.
Inventors
- 👤 Edmund Wateler
- 👤 Erich Wateler
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 22:33
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/02; G03B; G03B27/00; G03B27/72; G03B27/727
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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