Bernard A. Johnston

Follow

Person

Downers Grove, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Combination metal and wood window frame assembly
- Patent number 4,875,316
- Issue date Oct 24, 1989
- Bernard A. Johnston
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Reelable door closure
- Patent number 4,821,786
- Issue date Apr 18, 1989
- Bernard A. Johnston
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS