Ian E. Clark

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Camberley, Surrey, GB

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Patents Grantslast 30 patents

Information Patent Grant
Drill bits
- Patent number 5,505,272
- Issue date Apr 9, 1996
- Ian E. Clark
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Drilling method and rotary drill bit crown
- Patent number 5,025,871
- Issue date Jun 25, 1991
- Aulette Stewart
- B28 - WORKING CEMENT, CLAY, OR STONE