Home / lithuaniaxxx / Patent dating chart

Patent dating chart cosmogenic radionuclide dating

Also identified are the various body companies which provided completed (or CKD) bodies or panel subassemblies to the Ford branch assembly plants for each body style.

Body built by Briggs(Some 1929 60-A Briggs body tags were prefixed 191- during 60-A export production concurrent with, or after, US changeover from 60-A to 60-B)(example: export 60-A firewall dated 3/9/29 with 191- tag)Body built by Briggs.

See the first related link in the list at the bottom of this page for more information.

patent dating chart-31patent dating chart-66

This design change is often useful in dating approximate build timing of various early 1931 models.New standardized styled cowl and body construction replaced the many unique body parts and designs of the Briggs 60-A, B, C series Fordor sedans.Citing is easier with Easy and a little bit of knowledge!There are also numerous citation examples to help you learn to cite nearly anything!In order to continue using your account, you have to agree to the Terms of Use and Privacy Policy.The following tables show the various Ford-assigned body style numbers and any corresponding body manufacturer tag prefix numbers for 1928 through 1931 Model A and AA Fords produced and marketed primarily in the US and Canada.In nearly all cases below, the names used to describe body styles and models are the same names Ford used themselves in advertising and literature.You must agree to the changes in order to access your account, and all the work associated with it.If you do not agree to these changes, you will be logged out and your account will be deactivated.I have attempted to test the validity of the technique for establishing dates for UK radio sets by cross-referencing various UK radio sets against issue dates for their assosciated patents. You can even read the original patents if you are interested!If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email [email protected] It will help us if you say what assistive technology you use.

919 comments

  1. U. S. patent date chart. this chart will help you find the year an item was patented if you know the patent number, also design patents. Brought to you by Robinsons Antiques.

  2. Aug 12, 2016. Request for numbers of patents for each year since 1820.

  3. Biddington's provides a list of US patent numbers cross-referenced with the dates they were issued to help in determining the age of antiques & collectibles.

  4. The purpose of this guide is to help people date items that they think are old. If you have a patent number on an item, you can approximately date it using the chart below, for items with a US Patent number.

Leave a Reply

Your email address will not be published. Required fields are marked *

*