Patent US1857452A successfully refreshed from Google Patents.
DE656389C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Photoelectric polarization apparatus
Assignee: Individual
•
Filing: 1934-04-26
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Granted: 1938-02-08
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Expires: 1954-04-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 08:10
CPC Classifications
G; G01; G01J; G01J4/00; G01J4/04
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