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DE749696C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process for the production of contact rivets from bimetal

Assignee: EUGEN DUERRWAECHTER DR ING
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Filing: 1942-02-05
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Granted: 1944-11-29
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Expires: 1962-02-05
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-02 22:10
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/06; B21K; B21K1/00; B21K1/58; B21K1/62; B23; B23P; B23P17/00; B23P23/00; B23P23/04; H; H01; H01H; H01H11/00; H01H11/04; H01H11/041

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