Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 172/214
Name: Earth working > Alternating for right or left hand operation (other than scraper) > Tools oriented for movement in opposite directions > Wheeled frame with reversible draft member
Description: Apparatus in which the earth working elements are carried by a wheeled frame having a draft member shiftable from one end of the frame to the opposite end through substantially 180° to draw the device in either direction.










Patents under this class:

Patent Number Title Of Patent Date Issued
5609214 Agricultural machine Mar. 11, 1997
4068722 Manure crushing and earth mixing rotary machine Jan. 17, 1978











 
 
  Recently Added Patents
Method and system for evaluating/analyzing patent portfolio using patent priority approach
Tray for microwave cooking and folding of a food product
Method and system for leveraging the power of one's social-network in an online marketplace
Pre-primed roofing membrane
Markers of acute myeloid leukemia stem cells
Assisting apparatus, method, and program for checking crosstalk noise between hierarchized modules in a semiconductor circuit
Waterproof wound protector
  Randomly Featured Patents
Photo-degradable styrene resin compositions
Method of calibrating a scanning system
Portable cooler
Method and system for reorganizing a tablespace in a database
Method and apparatus for preparing false twisted yarns
Process for production of polypropylene terephthalate
Method of preventing fluorine-induced gate oxide degradation in WSi.sub.x polycide structure
In situ testing of a satellite or other object prior to development
Fuel injector pump advance arrangement
Systems and methods for customizing insurance