US PATENT SUBCLASS 278 / 52
THILL COUPLINGS

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

52THILL COUPLINGS {10}
53  DF  .~> Resilient
54  DF  .~> Safety attachments
55  DF  .~> Plural
56  DF  .~> Special-position release {3}
60  DF  .~> Removable transverse pin or bolt {2}
66  DF  .~> Opposed lug engaging or carrying jaws
67  DF  .~> L-head type
68  DF  .~> T-head type {1}
72  DF  .~> D-head type {2}
80  DF  .~> Ball and socket

DEFINITION

Classification: 278/52

THILL COUPLINGS:

(under the class definition) Subject matter including devices for attaching thills to a vehicle; usually such connection is made to the axle; one of the elements of the coupling is formed on the thills.