John MacDonald & Company (Pneumatic Tools) Limited

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Glascow, GB

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Patents Grantslast 30 patents

Information Patent Grant
Scabbler bits
- Patent number 4,997,050
- Issue date Mar 5, 1991
- John MacDonald and Company (Pneumatic Tools) Limited
- David T. Allan
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Fluid operated undercutter
- Patent number 4,186,810
- Issue date Feb 5, 1980
- John MacDonald & Company (Pneumatic Tools) Limited
- David T. Allan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

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