US PATENT SUBCLASS 223 / 13
.~.~ Fluid pressure

Current as of: June, 1999
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223 /   HD   APPAREL APPARATUS

7  DF  HAT MAKING {11}
12  DF  .~ Shaping {5}
13.~.~ Fluid pressure

DEFINITION

Classification: 223/13

(under subclass 12) Devices in which the pressure is applied through fluid means.