FR569291A
Expired / Lapsed
FR
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Process and machine for the cutting and cutting of rocks
Assignee: Francois-Joseph-Bart Berry
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Filing: 1923-08-01
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Granted: 1924-04-09
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Expires: 1943-08-01
Abstract
No abstract record available.
Inventors
- 👤 Francois-Joseph-Bart Berry
- 👤 Edouard Drouet
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 02:08
CPC Classifications
E; E21; E21C; E21C25/00; E21C25/54; B; B23; B23D; B23D61/00; B23D61/18; B23D61/185
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References Cited (Backward Citations)
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