DE703801C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Valve spring, especially for internal combustion engines
Assignee: LUIGI PARENA
•
Filing: 1939-08-08
•
Granted: 1941-03-17
•
Expires: 1959-08-08
Abstract
No abstract record available.
Inventors
- 👤 Giovanni Morello
- 👤 Luigi Parena
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/46; F01L1/462
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References Cited (Backward Citations)
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