US PATENT SUBCLASS 213 / 177
.~.~.~ Arrowhead type

Current as of: June, 1999
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213 /   HD   RAILWAY DRAFT APPLIANCES

75 R  DF  COUPLINGS {9}
*  DD  .~ Link or bar type {8}
176  DF  .~.~ Beveled link and wing catch {1}
177.~.~.~ Arrowhead type

DEFINITION

Classification: 213/177

Where an end of each link is fashioned like an arrowhead.

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81, and 92.