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FR2239581B1 - - Google Patents
Assignee: Otis Engineering Corp
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Filing: 1974-08-01
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Granted: 1983-02-11
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Expires: 1994-08-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 21:13
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/03
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References Cited (Backward Citations)
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