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David W. Melnick
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Denver, CO, US
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last 30 patents
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Patent Grant
Method for making block forms for receiving concrete
Patent number
5,664,382
Issue date
Sep 9, 1997
David W. Melnick
B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Patent Grant
Block forms for receiving concrete
Patent number
5,488,806
Issue date
Feb 6, 1996
David W. Melnick
B26 - HAND CUTTING TOOLS CUTTING SEVERING