David H. Dowler

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Portland, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
Telephone interface security device
- Patent number 4,825,466
- Issue date Apr 25, 1989
- GTE Products Corporation
- David H. Dowler
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cover and support plate arrangement for wall mounted devices
- Patent number 4,803,380
- Issue date Feb 7, 1989
- Lutron Electronics Co., Inc.
- Elliot G. Jacoby
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Carrier for electronic circuit boards
- Patent number 4,747,018
- Issue date May 24, 1988
- GTE Products Corporation
- David M. Munsey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Indoor telephone network interface device
- Patent number 4,731,809
- Issue date Mar 15, 1988
- GTE Products Corporation
- Robert A. Crane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE