FR845222A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to piston machines with variable dead space in motion, in particular to internal combustion engines with variable compression
Assignee: Tienda Y De Robert De Lafre De
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Filing: 1938-10-26
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Granted: 1939-08-16
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Expires: 1958-10-26
Abstract
No abstract record available.
Inventors
- 👤 Tienda Y De Robert De Lafre De
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 08:04
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/04; F02B75/047
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