Albert H. Lahm

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Lorain, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Checkered wall or ceiling system
- Patent number 4,413,457
- Issue date Nov 8, 1983
- Donn Incorporated
- Albert H. Lahm
- B44 - DECORATIVE ARTS
Information Patent Grant
Integrated lighting systems for suspended ceilings or the like
- Patent number 4,407,011
- Issue date Sep 27, 1983
- Donn Incorporated
- Albert H. Lahm
- F21 - LIGHTING
Information Patent Grant
Suspension ceiling and recessed lighting system
- Patent number 4,086,480
- Issue date Apr 25, 1978
- Donn Products, Inc.
- Albert H. Lahm
- E04 - BUILDING