Patent US3556293A successfully refreshed from Google Patents.
Patent FR862104A successfully refreshed from Google Patents.
FR862104A
Expired / Lapsed
FR
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Manufacturing process of porous intermediate plates
Assignee: Keller and Cie AG
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Filing: 1939-12-05
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Granted: 1941-02-27
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Expires: 1959-12-05
Abstract
No abstract record available.
Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-24 09:53
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36
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