US PATENT SUBCLASS 278 / 69
.~.~ Cooperating hooks

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

52  DF  THILL COUPLINGS {10}
68  DF  .~ T-head type {1}
69.~.~ Cooperating hooks {1}
70  DF  .~.~.~> Retainers {1}

DEFINITION

Classification: 278/69

Cooperating hooks:

(under subclass 68) Subject matter wherein the branches of the "T" are engaged by hooks.