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DE680213C Expired / Lapsed DE ⏱️ 0.0 years remaining

Use of copper alloys for non-sparking tools

Assignee: Pose & Marre Ingenieurbuero
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Filing: 1936-02-29
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Granted: 1939-08-24
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Expires: 1956-02-29
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Abstract

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Inventors

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-01 08:04
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/01

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