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Class 172/135 - One implement surrounds another


Subclass of Class 172 - Earth working
Definition: Apparatus in which an implement has earth working portions
No. of patents: 3
Last issue date: 06/11/1996


NumberTitleIssue Date
5524711Agricultural implement for forming planting rows
The present invention entails an agricultural implement for forming planting rows with a minimum of tillage. The implement of the present invention is designed to form a multiplicity of rows and accordingly includes a series of side-by-side row units. Eac...
06/11/1996
5333694Strip-till seed bed preparation apparatus
Seed bed preparation apparatus for the no-till preparation of longitudinal strips of soil for the planting of seeds in longitudinal rows including plurality of laterally spaced apart gang assemblies which are individually mounted on a draft vehicle such a...
08/02/1994
4377355Quiet bouncer driver thruster method with pressurized air chamber encircling massive bouncing piston
A massive piston, which might be called a "ram", except that it does not strike anything during operation, reciprocates with bouncing action up and down within a cylinder. An annular pressurized gas storage chamber encircles the piston and travels up and ...
03/22/1983
 
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