DE681978C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Card index with a number of card groups, the individual cards of which can be placed in the staggered position within the group
Assignee: HEINRICH ZEISS UNIONZEISS KOMM
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Filing: 1936-02-05
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Granted: 1939-10-05
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Expires: 1956-02-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-30 10:26
CPC Classifications
B; B42; B42F; B42F17/00; B42F17/32
Claims Analysis
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References Cited (Backward Citations)
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