William E. Donahue

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Harleysville, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-component elastomeric materials for a building flashing system
- Patent number 5,899,026
- Issue date May 4, 1999
- Mark F. Williams
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS