John W. T. K. Thornborrow

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Sonning, GB

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Patents Grantslast 30 patents

Information Patent Grant
Tube working apparatus
- Patent number 4,905,553
- Issue date Mar 6, 1990
- J R Group PLC
- John W. T. K. Thornborrow
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...