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DE442355C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process and device for the extraction of oil and other products from bituminous materials such as slate, coal and like
Assignee: PATENTAKTIEBOLAGET GROENDAL RA
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Filing: 1924-11-13
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Granted: 1927-03-30
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Expires: 1944-11-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 21:44
CPC Classifications
C; C10; C10B; C10B7/00; C10B7/14
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