Patent FR49191E successfully refreshed from Google Patents.
FR49191E
Expired / Lapsed
FR
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Process for obtaining heavy oils poor in asphalt or not containing it
Assignee: IG Farbenindustrie AG
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Filing: 1938-02-18
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Granted: 1938-11-28
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Expires: 1958-02-18
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 04:02
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/002
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