Darryl F. Proctor

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Redmond, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for detecting direct currents in a transmissio...
- Patent number 4,118,597
- Issue date Oct 3, 1978
- Proctor & Associates Company
- Darryl F. Proctor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic telephone number identification circuit
- Patent number 4,001,512
- Issue date Jan 4, 1977
- Proctor & Associates Company
- Darryl F. Proctor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for distinguishing voice and other noise signals from leg...
- Patent number 3,944,753
- Issue date Mar 16, 1976
- Proctor & Associates Company
- Darryl F. Proctor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE