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DE354457C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process for preventing the penetration of explosive gas air mixtures into flammable gases

Assignee: DEUTSCHE MASCHF AG
•
Filing: 1921-10-19
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Granted: 1922-06-09
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Expires: 1941-10-19
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-22 19:37
CPC Classifications
A; A62; A62C; A62C4/00; A62C4/02

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