FR1249920A
Expired / Lapsed
FR
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Method of moving the elements of a walking support and equipment allowing the implementation of this method
Assignee: Houilleres du Bassin du Nord et du Pas de Calais
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Filing: 1959-11-24
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Granted: 1961-01-06
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Expires: 1979-11-24
Abstract
No abstract record available.
Inventors
- 👤 Roger Adam
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 23:06
CPC Classifications
E; E21; E21D; E21D23/00; E21D23/0052
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