On February 19, 1878, Thomas Edison received a patent for the phonograph. The photo shows Thomas Edison with his patented phonograph.The device could mechanically record…
Patent Information Publication number: US200521 A Patent Title: Improvement in phonograph or speaking machines Publication type: Grant Publication date: Feb 19, 1878 Filing date:…
On October 17, 1888, Thomas Edison filed a patent for the Optical Phonograph (the first movie). Edison claimed is that it will ‘do for the…
Book a Free Consultation
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.AcceptDo Not AcceptRead more