April 1952 Electrical and scientific apparatus Trademarks by day
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Electrical and scientific apparatus Trademarks filed in April 1952
MARBEL

MARBEL

Filed: April 26, 1952
BLOOD-CELL CALCULATORS
Owned by: MARBLE BLOOD CALCULATOR COMPANY
Serial Number: 71628771

PNEUMATRON

PNEUMATRON

Filed: April 26, 1952
WEIGHING MACHINES, COMBINED WEIGHING AND FILLING MACHINES, AND CHECKWEIGHING MACHINES FOR CHECKING THE WEIGHTS OF FILLED…
Owned by: PNEUMATIC SCALE CORPORATION
Serial Number: 71628778

PNEUMATRON

PNEUMATRON

Filed: April 26, 1952
WEIGHING MACHINES, COMBINED WEIGHING AND FILLING MACHINES, AND CHECKWEIGHING MACHINES FOR CHECKING THE WEIGHTS OF FILLED…
Owned by: PNEUMATIC SCALE CORPROATION, LIMITED
Serial Number: 71628779

THUNDERBOLT

THUNDERBOLT

Filed: April 25, 1952
ELECTRICALLY OPERATED SIRENS
Owned by: Federal Signal Corporation
Serial Number: 71628684

F THUNDERBOLT

F THUNDERBOLT

Filed: April 25, 1952
ELECTRICALLY OPERATED SIRENS
Owned by: FEDERAL ENTERPRISES, INC.
Serial Number: 71628685

TI

TI

Filed: April 25, 1952
TRANSISTORS, PORTABLE RADIO TRANSMITTER RECEIVERS, COMPONENTS OF RADAR AND SONAR EQUIPMENT-NAMELY, ANTENNAE, TRANSFORMERS…
Owned by: TEXAS INSTRUMENTS INCORPORATED
Serial Number: 71628725

S

S

Filed: April 23, 1952
ELECTRIC MOTORS, ELECTRIC MOTOR CONTROLLERS FOR REGULATING THE STARTING, STOPPING, REVERSING AND SPEED OF ELECTRIC MOTORS…
Owned by: SINGER MANUFACTURING COMPANY, THE
Serial Number: 71628557

S

S

Filed: April 23, 1952
RECEPTACLES FOR LUBRICANTS-NAMELY, OIL-DISPENSING CANS, COLLAPSIBLE TUBES, BARRELS, CANS, AND CARDBOARD CARTONS AND BOXES…
Owned by: SINGER MANUFACTURING COMPANY, THE
Serial Number: 71628562

SIMANCO

SIMANCO

Filed: April 23, 1952
BELT HOOKS AND CABINET AND FURNITURE HARDWARE-NAMELY, HINGES, BRACKETS, BRACES AND HANDLES.
Owned by: SINGER MANUFACTURING COMPANY, THE
Serial Number: 71628578

ELEMEX

ELEMEX

Filed: April 22, 1952
ELECTRICAL CAPACITORS
Owned by: MCGRAW ELECTRIC COMPANY
Serial Number: 71628502