US PATENT SUBCLASS 29 / 891.1
.~.~ Traction apparatus, e.g., for tractor

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
891  DF  .~ Agricultural device making {2}
891.1.~.~ Traction apparatus, e.g., for tractor

DEFINITION

Classification: 29/891.1

Traction apparatus, e.g., for tractor:

(under subclass 891) Process for manufacturing devices related to the motivation of agricultural machinery (e.g., crawler type tractor, etc.) with respect to ground contact.

SEE OR SEARCH CLASS

180, Motor Vehicles,

9+, for track driven motor vehicle structure and subclass 16 for traction wheel attachments.