Patent FR504380A successfully refreshed from Google Patents.
FR504380A
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Improvements to valve mechanisms for internal combustion engines
Assignee: Rolls Royce PLC
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Filing: 1919-05-06
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Granted: 1920-07-02
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Expires: 1939-05-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 08:58
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F01; F01L; F01L1/00; F01L1/26; F01L1/262; F02F1/002; F02F1/242; F02B; F02B1/00; F02B1/02; F02B1/04; F02B23/00; F02B23/08; F02B2023/085; F02B2275/00; F02B2275/20; F02F2001/244; F02F2001/245; F02F2001/246
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