The Talking Machine Patent Archive

Patents you could hear

Patented April 10, 1877

If an object in your hands says PAT. APRIL 10, 1877, it may be one of these.

PatentTitleInventorOf
US 189,391IMPROVEMENT IN ELECTRO-PNEUMATIC MUSIC-PLAYING APPARATUS.William Ford Schmoele and Henry Schmoele, Jr.Philadelphia, Pennsylvania

All dates