John Anthony Barsellotti

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Guelph, CA

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Patents Grantslast 30 patents

Information Patent Grant
Control circuit for telephone subscriber station
- Patent number 4,221,935
- Issue date Sep 9, 1980
- International Standard Electric Corporation
- John A. Barsellotti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Line circuit for key telephone systems
- Patent number 4,101,740
- Issue date Jul 18, 1978
- International Standard Electric Corporation
- John Anthony Barsellotti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key telephone system interconnection apparatus
- Patent number 4,096,359
- Issue date Jun 20, 1978
- International Standard Electric Corporation
- John Anthony Barsellotti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Line circuit for key telephone systems
- Patent number 4,071,712
- Issue date Jan 31, 1978
- International Standard Electric Corporation
- John Anthony Barsellotti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key telephone system using time division and space division control
- Patent number 3,935,396
- Issue date Jan 27, 1976
- International Standard Electric Corporation
- John A. Barsellotti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE