US PATENT SUBCLASS 212 / 121
.~.~.~ Permanently spaced

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

71  DF  OVERHEAD {7}
76  DF  .~ Cable {8}
117  DF  .~.~ Rope carriers {4}
121.~.~.~ Permanently spaced

DEFINITION

Classification: 212/121

Permanently spaced:

(under subclass 117) Rope carriers permanently located at fixed points along the line of the trackway.