Frederick M. Hansen

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Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Insulative wall cladding having insulation boards fitting together...
- Patent number 5,564,243
- Issue date Oct 15, 1996
- Richard E. Kroll
- E04 - BUILDING
Information Patent Grant
Insulative wall cladding having insulation boards fitting together...
- Patent number 5,392,578
- Issue date Feb 28, 1995
- Dryvit Systems Canada Ltd.
- Richard E. Kroll
- E04 - BUILDING
Information Patent Grant
Insulative wall cladding having insulation boards fitting together...
- Patent number 5,363,621
- Issue date Nov 15, 1994
- Dryvit Systems, Inc.
- Richard E. Kroll
- E04 - BUILDING