DE587119C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Copy photometer with a beam path concentrated on a small area of the negative, which acts on a light-sensitive cell
Assignee: HANS VON HARTEL DR ING
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Filing: 1930-03-21
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Granted: 1933-10-30
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Expires: 1950-03-21
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 09:00
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42; G01J1/4209; G01J1/4223
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