US PATENT SUBCLASS 451 / 115
.~.~ Of valve and seat
Current as of:
June, 1999
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Terms of Use
451 /
HD
ABRADING
64
DF
MACHINE
{12}
114
DF
.~ By use of plural work holders, without tool {1}
115
.~.~ Of valve and seat {3}
116
DF
.~.~.~
> Plug cock
117
DF
.~.~.~
> Poppet valve
118
DF
.~.~.~
> Slide valve
DEFINITION
Classification: 451/115
Of valve and seat:
(under subclass 114) Abrading machine in which the abrading is accomplished by mutual moving contact between plural workpieces intended to be used together to contain and adjustably restrict the flow of fluid.