FR690292A
Expired / Lapsed
FR
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Improvements to digging devices for railways
Assignee: Prosper Le Roux
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Filing: 1930-02-19
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Granted: 1930-09-18
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Expires: 1950-02-19
Abstract
No abstract record available.
Inventors
- 👤 Prosper Le Roux
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 09:45
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/06
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References Cited (Backward Citations)
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