There are about 18 "Patent Repositorys" around the country, that keep the same records as the U.S. Patent office. In the midwest the University of Wisconsin has them,at Madison WI, and the Minneapolis Public Library Has them. I'm about 150 miles from eather, so I use Minneapolis, because i'd get lost in Madison, and the air is too full of "weed" fumes. In Minneapolis they have a set of books, for every year--sometimes more than 1 for a year, and, for instance, if you are looking for a Delco distributor for a 1922 chevrolet, that says "Patent 1921", you go to the 1921 book and page through, looking for Delco, (Actually--you'll find it under Dayton Engineering Labratories CO which became DELCO) It will give numbers to look for- then you go to computer,(newer), or microfilm reader, and look up the patent. You can print copies also. OR go to U.S.patentoffice.gov on the web, and you can look up patents, but so far they only go back to about 1950, though more are being added all of the time. In another year or 2 we'll be able to look back all the way, on the home computer
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - The Niagra View Mobile - Powered by a 1959 Ford Tractor - by Mark Massey. In 1959 the Niagara Frontier Transit Inc. of Buffalo, New York designed and built six Viewmobiles for the Niagara Frontier Sightseeing Inc. for use as a sightseeing ride at the Niagara Falls State Park, Niagara Falls, New York, powered by a 1959 Ford 611 Tractor.
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.