Patrick J. Duffy

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Renfrewshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Integral finned tubes and a method of manufacturing same
- Patent number 5,036,693
- Issue date Aug 6, 1991
- Babcock Energy Limited
- Patrick J. Duffy
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...