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Noel R. Halverson
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Stoughton, WI, US
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last 30 patents
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Patent Grant
Ceiling grid wall clip
Patent number
D422486
Issue date
Apr 11, 2000
Keel Manufacturing, Inc.
Michael J. Wolfe
D08 - Tools and hardware
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Patent Grant
Ceiling panel hold down clip
Patent number
D421897
Issue date
Mar 28, 2000
Keel Manufacturing, Inc.
Don M. Washecheck
D08 - Tools and hardware