Microfork Trademarks

MICROFORK
PIEZOELECTRIC TUNING FORKS AND ELECTROMAGNETIC TUNING FORKS
Expired  ·  October 15, 1973  ·  73003631  · 
MICROFORK
ELECTRICAL APPARATUS, MACHINES AND SUPPLIES-NAMELY, PIEZO-ELECTRIC TUNING FORKS, AND ELECTROMAGNETIC TUNING FORKS
Expired  ·  September 3, 1965  ·  72227171  ·