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Class Information
Number: 172/154
Name: Earth working > Diverse tools > At least four alternately diverse laterally spaced tools (a, b, a, b) > All rolling
Description: Apparatus in which the diverse earth working elements are all of the rolling type.

Patents under this class:

Patent Number Title Of Patent Date Issued
6932162 Pneumatic processing machine having automatic stop at the end of a machining cycle Aug. 23, 2005
4520582 Ski trails rotary cutter and crusher drag unit Jun. 4, 1985

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