FR840140A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Selectivity mechanism
Assignee: Leon De Kramolin
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Filing: 1938-07-01
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Granted: 1939-04-19
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Expires: 1958-07-01
Abstract
No abstract record available.
Inventors
- 👤 Leon De Kramolin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 20:20
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1638
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