Thomas C. Springsteen

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Gilbert, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Lightweight penetration resistant door post
- Patent number 8,549,803
- Issue date Oct 8, 2013
- Armorworks Enterprises LLC
- Scott David Retzloff
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS