US PATENT SUBCLASS 104 / 172.5
.~.~ Chain construction

Current as of: June, 1999
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104 /   HD   RAILWAYS

165  DF  TRACTION {8}
172.1  DF  .~ Chain {4}
172.5.~.~ Chain construction

DEFINITION

Classification: 104/172.5

Chain construction:

(under subclass 172.1) Subject matter pertaining to the structure of the traction chain, per se.