Edison Electric Pen

Edison's electric pen morph's into the mimeograph machine; and later by others, into the tattoo pen!

Thomas Edison's Electric Pen Invention The Henry Ford's Innovation Nation

Edison Demonstration Tinfoil Phonograph by E. Hardy

Sold at Auction: Edison Electric Pen

RARE EDISON ELECTRIC PEN - PAT. AUG 8 1876

Thomas Edison's Electric Pen - Science Museum Blog

The OTHER inventions of Thomas A. Edison - ppt download

Edison Electric Pen – 1876 SPARK Museum of Electrical Invention

Edison Electric Pen

Thomas Edison's Electric Pen - Science Museum Blog

Edison's Electric Pen

RARE EDISON ELECTRIC PEN - PAT. AUG 8 1876