US PATENT SUBCLASS 278 / 112
.~.~.~ Trace retaining

Current as of: June, 1999
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278 /   HD   LAND VEHICLES: ANIMAL DRAFT APPLIANCES

90  DF  WHIFFLETREES {5}
102  DF  .~ Trace and whiffletree connections {4}
111  DF  .~.~ Hooks {2}
112.~.~.~ Trace retaining {2}
113  DF  .~.~.~.~> Movable keeper {1}
115  DF  .~.~.~.~> Special-position release {1}

DEFINITION

Classification: 278/112

Trace retaining:

(under subclass 111) Subject matter wherein the hook is provided with trace-retaining means.