Electrical and scientific apparatus Trademarks Filed in February 12, 1953
DUODIAL
Filed: February 12, 1953
CONTROL KNOB FOR ANGULARLY ADJUSTING AND INDICATING THE POSITION OF A SHAFT TO WHICH THE KNOB IS CONNECTED
Owned by: ASTEC AMERICA, INC.
Serial Number: 71642142
SUPER SERVICE
Filed: February 12, 1953
ELECTRIC VACUUM CLEANERS, INCLUDING ROTARY BLOWER AND SUCTION PUMP APPARATUS, AND PARTS THEREOF
Owned by: NATIONAL SUPER SERVICE COMPANY, THE
Serial Number: 71642154
