Category:1955 patents

Media in category "1955 patents"

The following 2 files are in this category, out of 2 total.

• 
  US2710555A Electronic Musical Instrument (1949-12-28 filed, 1955-06-14 published) by Constant Martin - Clavioline Fig.1, 2.jpg 2,496 × 1,700; 753 KB
  
• 
  US2710555A Electronic Musical Instrument (1949-12-28 filed, 1955-06-14 published) by Constant Martin - Clavioline.pdf 1,158 × 1,702, 3 pages; 395 KB