Patent US596283A successfully refreshed from Google Patents.
Patent FR861981A successfully refreshed from Google Patents.
FR861981A
Expired / Lapsed
FR
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Process for the purification of substances insoluble in water, in particular clays, containing ferruginous impurities
Assignee: Jean Albert Henri Mic Lavollay
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Filing: 1939-08-10
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Granted: 1941-02-22
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Expires: 1959-08-10
Abstract
No abstract record available.
Inventors
- 👤 Jean Albert Henri Mic Lavollay
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 19:56
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/10; C04B33/04; C04B33/06; C04B33/30
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