US PATENT SUBCLASS 144 / 133.2
.~ Tie gaining, ties (skepers) pass through machine

Current as of: June, 1999
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144 /   HD   WOODWORKING

133.1  DF  GAINING MACHINE {2}
133.2.~ Tie gaining, ties (skepers) pass through machine

DEFINITION

Classification: 144/133.2

Tie gaining, ties (skepers) pass through machine:

(under subclass 133.1) Machine for gaining a wood member intended to rest on railway ballast and support a railway rail by allowing the wood member to move relative to the gaining tool and relative to the support structure thereof.