Patent DE579728C successfully refreshed from Google Patents.
DE579728C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Standing folder, especially for index purposes, hinged to the folder cover, supports that can be expanded or retracted automatically when the folder is opened or closed
Assignee: Individual
•
Filing: 1932-02-13
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Granted: 1933-06-30
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Expires: 1952-02-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 17:42
CPC Classifications
B; B42; B42F; B42F7/00; B42F7/14
Claims Analysis
Total Claims: 0
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