Marcel Lefebvre

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Angouleme, FR

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Patents Grantslast 30 patents

Information Patent Grant
Transistor switching means
- Patent number 4,430,684
- Issue date Feb 7, 1984
- La Telemecanique Electrique
- Marcel Lefebvre
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Photo-electric detector with temperature-compensated circuit
- Patent number 4,328,419
- Issue date May 4, 1982
- La Telemecanique Electrique
- Marcel Lefebvre
- H03 - BASIC ELECTRONIC CIRCUITRY