Paul D. Graham

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Frankfort, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable speed warning device
- Patent number 6,211,779
- Issue date Apr 3, 2001
- Federal Signal Corporation
- Richard G. Gibb
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Remote control spotlight
- Patent number 5,584,560
- Issue date Dec 17, 1996
- Federal Signal Corporation
- Earl W. Gosswiller
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Alerting device and system for abnormal situations
- Patent number 5,572,201
- Issue date Nov 5, 1996
- Federal Signal Corporation
- Paul D. Graham
- G08 - SIGNALLING
Information Patent Grant
Flash strobe power supply
- Patent number 4,613,797
- Issue date Sep 23, 1986
- Federal Signal Corporation
- Frederick W. Eggers
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Speaker grille for streamlined light bar mounted on vehicle roof
- Patent number 4,334,211
- Issue date Jun 8, 1982
- Federal Signal Corporation
- Michael V. McConnell
- B60 - VEHICLES IN GENERAL