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Class Information
Number: 29/DIG.25
Name: Metal working > Method or apparatus with particular material

Patents under this class:

Patent Number Title Of Patent Date Issued
7299533 Process for lapping ring and pinion gears Nov. 27, 2007
6439621 Tubing coupling and a method for producing the same Aug. 27, 2002
5786762 Magnetostrictive element for use in a magnetomechanical surveillance system Jul. 28, 1998
5469140 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same Nov. 21, 1995
4779323 Fluid shear coupling apparatus Oct. 25, 1988
4738010 Method of producing a sheet or plate-shaped structure as the bearing material for slide bearings Apr. 19, 1988
4731915 Machinery support and method Mar. 22, 1988
4731914 Method for manufacturing an electrohydraulic valve assembly Mar. 22, 1988
4724819 Cylinder liner reconditioning process and cylinder liner produced thereby Feb. 16, 1988
4721456 Combustion element for a radiant energy burner and method of making same Jan. 26, 1988
4716640 Method for manufacturing a burner ring for a turbojet engine Jan. 5, 1988
4665601 Method of assembly of ferritic stainless steel tubes to a carbon steel tube-plate May. 19, 1987
4662047 Method of making a one-piece piston for an internal-combustion engine May. 5, 1987
4645360 Plain bearings and a method for manufacturing plain bearings Feb. 24, 1987
4642863 Manufacturing method for hollow metal airfoil type structure Feb. 17, 1987
4642864 Recuperator tube assembly Feb. 17, 1987
4637117 Method for deep drawing thin metal stock into containers and thereafter coating each container Jan. 20, 1987
4606101 Method of manufacturing a radially corrugated expander-spacer for a piston oil ring assembly Aug. 19, 1986
4577379 Bearing assembly and method for assembling a bearing Mar. 25, 1986
4577380 Method of manufacturing heat exchangers Mar. 25, 1986
4528733 Method of making tubular heat exchangers Jul. 16, 1985
4202086 Method of assembling the parts of a heat exchanger, and a heat exchanger thus assembled May. 13, 1980
4110893 Fabrication of Co-Cr-Al-y feed stock Sep. 5, 1978
4087894 Method of manufacture of watch case May. 9, 1978

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