Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 172/768
Name: Earth working > Tool, standard or connection > Specific tool shape > Draw cut type
Description: Apparatus in which the earth-breaking portion of the tool has a rearward and downward inclination so as to break the earth by being drawn therethrough.

Patents under this class:

Patent Number Title Of Patent Date Issued
7568439 Fertilizer knife and point structure Aug. 4, 2009
5310009 Agricultural insert May. 10, 1994
5007485 Earth crust breaker Apr. 16, 1991
4102407 Reforestation tillage mechanism Jul. 25, 1978

  Recently Added Patents
Methods and apparatus for dynamic identification (ID) assignment in wireless networks
Visual indicator of online backup
Imaging lens
Programmable computer mouse
Elastic polypropylene-based film compositions
Fluorine-free fused ring heteroaromatic photoacid generators and resist compositions containing the same
Photoacoustic joulemeter utilizing beam deflection technique
  Randomly Featured Patents
Rotating driver with automatic speed and torque switching
Framed digital voice summing for teleconferencing
Calculator rule
Isolation container for a downhole electric pump
Infusion pump with historical data recording
Adapter for interfacing between two buses
Seat belt adjustment device
Developing apparatus for an image reproduction
Crossover system
Methods, systems, and computer readable media for bridging user authentication, authorization, and access between web-based and telecom domains