Constant O. Maffey

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Cranford, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Security device for trailer
- Patent number 4,697,444
- Issue date Oct 6, 1987
- Constant O. Maffey
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Trailer kingpin locking device with protected locking bar aperture
- Patent number 4,553,415
- Issue date Nov 19, 1985
- Constant O. Maffey
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS