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Class Information
Number: 164/DIG.8
Name: Metal founding > Piston

Patents under this class:

Patent Number Title Of Patent Date Issued
5388632 Method and apparatus for casting articles Feb. 14, 1995
5174357 Casting die Dec. 29, 1992
4261088 Cast compression ring for reciprocating pistons Apr. 14, 1981
4120081 Manufacture of pistons incorporating a thermal barrier Oct. 17, 1978
4020894 Piston molding machine May. 3, 1977
3991811 Process for manufacturing a light alloy piston having an annular cooling passage in its head portion Nov. 16, 1976

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