FR664740A
Expired / Lapsed
FR
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Improvement of book covers used to contain index cards or index cards
Assignee: Samuel Casoetto
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Filing: 1928-11-10
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Granted: 1929-09-06
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Expires: 1948-11-10
Abstract
No abstract record available.
Inventors
- 👤 Samuel Casoetto
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 21:16
CPC Classifications
B; B42; B42F; B42F5/00
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