Edison Phonograph Canvas Patent Print
- Printed in the U.S.A. on canvas with archival ink
- 16 X 20 inch patent print
- Restored and digitally enhanced while maintaining the integrity of the original document
- Antiqued blackboard finish
- $20 flat fee shipping
Vinyl records are cool! This Edison's 1891 phonograph patent, printed on canvas with archival ink, is definitely a cool conversation piece for your office, recording studio, and home.
"The object of my invention is to increase the simplicity in construction and operation of the phonograph by decreasing the number with the objects of increased simplicity. . . . it consists in attaching both the recording-point and the reproducing point to the same diaphragm, and so arranging the parts carrying such diaphragm that by a simple movement either the recording or the reproducing point may be placed in operative position."--Thomas A. Edison. Filed with the United States Patent and Trademark Office December 19,1891.
The patent act of 1790 established the rules for submitting a patent application. Each application had to be submitted with specifications, a patent drawing, and if possible a model of the invention. Eventually, models were no longer required.
The National Archives holds nearly three million patent case files from 1836-1956.