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Class Information
Number: 172/618
Name: Earth working > Plural relatively movable tools > Tools assume different angularity for opposite draft
Description: Apparatus in which the earth working elements or tooth bars pivot about a horizontal transverse axis to different working angles when draft force is applied to the apparatus in opposite directions and including means to limit the movement of the elements or tooth bars to a particular angularity in both directions.

Patents under this class:

Patent Number Title Of Patent Date Issued
5044449 Flex tine soil mulcher Sep. 3, 1991
4262752 Ground wheel and plowing implement connected thereto for filling wheel tracks Apr. 21, 1981
4252198 Ground levelling attachment for tractors Feb. 24, 1981
4220211 Harrow with tine stop therefor Sep. 2, 1980
4018255 Tree saw Apr. 19, 1977
3976145 Finish tools with mounting bracket therefor Aug. 24, 1976

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