Etat Francais represente par le Secretaire des Postes et Telecommunications (Centre National D'Etudes des Telecommunications)

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Information Patent Grant
Waveguide and process for making the same
- Patent number 4,043,029
- Issue date Aug 23, 1977
- Societe Anonyme de Telecommunications
- Jacques Allanic
- H01 - BASIC ELECTRIC ELEMENTS

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