Patent FR413883A successfully refreshed from Google Patents.
FR413883A
Expired / Lapsed
FR
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Door knob acting as an electrical switch
Assignee: PAUL HACKENBERGER
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Filing: 1910-03-21
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Granted: 1910-08-20
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Expires: 1930-03-21
Abstract
No abstract record available.
Inventors
- 👤 Paul Hackenberger
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 08:45
CPC Classifications
E; E05; E05B; E05B45/00; E05B45/06
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Total Claims: 0
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References Cited (Backward Citations)
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