Burt’s Pinion
Merritt Burt's Patent Safety Pinion (Center Wheel and Pinion from National Watch Company Movement) On September 13, 1864, Merritt Burt was granted the first patent for a safety pinion design.
Merritt Burt's Patent Safety Pinion (Center Wheel and Pinion from National Watch Company Movement) On September 13, 1864, Merritt Burt was granted the first patent for a safety pinion design.