David W. Melnick

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Denver, CO, US

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Patents Grantslast 30 patents

Information 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
Information 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