US PATENT SUBCLASS 104 / 212
.~.~.~.~ Wedge operated


Current as of: June, 1999
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104 /   HD   RAILWAYS

165  DF  TRACTION {8}
173.1  DF  .~ Cable {22}
202  DF  .~.~ Grippers {19}
204  DF  .~.~.~ Automatic grip control {7}
212.~.~.~.~ Wedge operated


DEFINITION

Classification: 104/212

(under subclass 204) Devices in which the gripping-jaws may be wedge-formed or are operated by wedges or beveled arms.