FR901915A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for the extraction of coals and other minerals
Assignee: Rudolf Hausherr & Sohne Maschf
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Filing: 1944-02-11
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Granted: 1945-08-09
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Expires: 1964-02-11
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 18:32
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/46
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