Keith T. O'Brien

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Jacksonville, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic door sweep
- Patent number 5,454,192
- Issue date Oct 3, 1995
- Adler; Richard S.
- Richard S. Adler
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS