Stenomask Trademarks

STENOMASK
hand-held microphone-equipped diction receiving units
Cancelled  ·  February 24, 1998  ·  75439611  · 
STENOMASK
HAND HELD AMBIENT SOUND EXCLUDING MICROPHONE-EQUIPPED DICTION RECEIVING UNIT FOR USE WITH ELECTRICAL RECORDING MACHINES
Expired  ·  July 1, 1952  ·  71632053  · 
stenomask