FR712877A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for the production of iron oxide and sulfur dioxide from iron sulphide ores
Assignee: Horace Freeman
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Filing: 1931-03-05
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Granted: 1931-10-14
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Expires: 1951-03-05
Abstract
No abstract record available.
Inventors
- 👤 Horace Freeman
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 07:43
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/14
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