David Neil Robertson

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Bedford, GB

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Patents Grantslast 30 patents

Information Patent Grant
Mold liner for facilitating manufacture of reinforced drainage blocks
- Patent number 6,632,046
- Issue date Oct 14, 2003
- Aco Polymer Products, Inc.
- Robert James King
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Mold liner for facilitating manufacture of reinforced drainage blocks
- Publication number 20020020798
- Publication date Feb 21, 2002
- Robert James King
- B28 - WORKING CEMENT, CLAY, OR STONE