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DE569686C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process for the production of pipes by drawing on a mandrel

Assignee: Ver Deutsche Metallwerke AG
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Filing: 1927-12-22
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Granted: 1933-02-06
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Expires: 1947-12-22
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-31 02:48
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/16; B21C1/22; B21C1/24

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