Patent DE642644C successfully refreshed from Google Patents.
DE642644C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of aluminum oxide by melting z. B. bauxite in an electric furnace in the presence of reducing agents
Assignee: Individual
•
Filing: 1932-09-21
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Granted: 1937-03-11
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Expires: 1952-09-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 13:29
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; C01F7/38
Claims Analysis
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References Cited (Backward Citations)
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