US PATENT SUBCLASS 278 / 115
.~.~.~.~ Special-position release

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  DF  .~.~.~ Trace retaining {2}
115.~.~.~.~ Special-position release {1}
116  DF  .~.~.~.~.~> Opposed lapping hooks

DEFINITION

Classification: 278/115

Special position release:

(under subclass 112) Subject matter wherein the hook is movable to a special position to permit release of the trace.