John O. Ewoldt

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Gilbert, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-storing security door assembly
- Patent number 8,955,254
- Issue date Feb 17, 2015
- Unique Home Designs, Inc.
- John O. Ewoldt
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS