Patent FR485000A successfully refreshed from Google Patents.
FR485000A
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FR
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Improvements to piston rings
Assignee: LORRAINE DES ANCIENS DE DIE Ets Ste
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Filing: 1917-04-04
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Granted: 1917-11-27
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Expires: 1937-04-04
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 03:56
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/14; F16J9/16
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