US PATENT SUBCLASS 278 / 59
.~.~ D-head type

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

52  DF  THILL COUPLINGS {10}
56  DF  .~ Special-position release {3}
59.~.~ D-head type

DEFINITION

Classification: 278/59

D-head type:

(under subclass 56) Subject matter wherein one of the elements of the coupling is D-shaped.