Patent DE470106C successfully refreshed from Google Patents.
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DE470106C Expired / Lapsed DE ⏱️ 0.0 years remaining

Electric horn that closes the contact with compressed air

Assignee: VALENTIN L FEY
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Filing: 1927-04-29
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Granted: 1929-01-05
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Expires: 1947-04-29
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-03 12:10
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/24

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