Patent US4309019A successfully refreshed from Google Patents.
DE577756C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Rotatable sleeve with viewing opening attached to the key shaft
Assignee: Individual
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Filing: —
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Granted: 1933-06-03
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Expires: 1950-06-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 05:29
CPC Classifications
E; E05; E05B; E05B19/00; E05B19/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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