US PATENT SUBCLASS 123 / 188.5
.~.~ Sleeve
Current as of:
June, 1999
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123 /
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INTERNAL-COMBUSTION ENGINES
188.1
DF
VALVE
{10}
188.4
DF
.~ Reciprocating valve {3}
188.5
.~.~ Sleeve
DEFINITION
Classification: 123/188.5
Sleeve:
(under subclass 188.4) Apparatus wherein the valve head consists of a thin cylindrically shaped sheet having an inlet or outlet port.