US PATENT SUBCLASS 242 / FOR 194
.~.~ Split nut alternately engaging left and right hand screw threads (242/158.4 A)

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

FOR 189  DF  TRAVERSE MECHANISM (242/158 R) {6}
FOR 193  DF  .~ Reversing mechanism (242/158.4 R) {1}
FOR 194.~.~ Split nut alternately engaging left and right hand screw threads (242/158.4 A)