Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 172/148
Name: Earth working > Diverse tools > Three or more diverse implements following same path (a, b, c, or a, b, a,) > Longitudinally spaced like implements with intermediate diverse implement (a, b, a)
Description: Apparatus in which the first and third implements in the direction of travel are alike and the intermediate or second implement is of a different type.










Patents under this class:

Patent Number Title Of Patent Date Issued
6382873 Soil levelling device May. 7, 2002
5590721 Conservation tillage tool Jan. 7, 1997
5477792 Apparatus for preparing soil for seed and method of using the apparatus Dec. 26, 1995
5156216 Conservation compliance tillage tool Oct. 20, 1992
4412589 Earth clod pulverizer Nov. 1, 1983
4374546 Conditioning apparatus for dirt race tracks Feb. 22, 1983
4243104 Soil working machine Jan. 6, 1981











 
 
  Recently Added Patents
Build process management system
Hand-held optical probe based imaging system with 3D tracking facilities
Circuit arrangement for a piezo transformer, and method therefor
Methods and systems for presenting an inhalation experience
Method for controlling operation of a wind turbine
Method for transforming a single reactor line
Ion implantation method and ion implantation apparatus
  Randomly Featured Patents
Method and apparatus for cleaning semiconductor device and method of fabricating semiconductor device
Self-phasing array with a time-shared processor
Method for the treatment of bedsores using electrical impulses
System for distributing poultry litter below the soil surface
Switching power supply unit
Web-based virtual computing machine
Apple tree named `Ruby Pink`
High pressure sodium lamp
Feeding apparatus for a film in a hot press stamping machine
Mounting apparatus of electronic parts and mounting methods of the same