FR989771A
Expired / Lapsed
FR
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Improvements in methods and apparatus for physical measurements using the variation of the natural frequency of oscillating circuits
Assignee: Societe Francaise dEquipements pour la Navigation Aerienne SFENA SA
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Filing: 1949-04-28
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Granted: 1951-09-13
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Expires: 1969-04-28
Abstract
No abstract record available.
Inventors
- 👤 Bideau
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 18:24
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0004; G01L9/0041; G01L9/0072; G01L9/0075; G01L9/0082; G01L9/0086; G01L9/10; G01L9/105; G01L9/12; G01L9/125
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