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Harold T. Keller deceased
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late of Pittsburgh, PA, US
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last 30 patents
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Patent Grant
Brazing sleeve having ceramic flux band and method for applying same
Patent number
4,762,674
Issue date
Aug 9, 1988
Westinghouse Electric Corp.
Wenche W. Cheng
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Tube expansion process
Patent number
4,649,492
Issue date
Mar 10, 1987
Westinghouse Electric Corp.
Susanta Sinha
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Tube expansion apparatus
Patent number
4,649,493
Issue date
Mar 10, 1987
Westinghouse Electric Corp.
Raymond P. Castner
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Brazing sleeve having ceramic flux band and method for applying same
Patent number
4,624,866
Issue date
Nov 25, 1986
Westinghouse Electric Corp.
Wenche W. Cheng
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR