Electrical and scientific apparatus Trademarks Filed in May 27, 1957
TRIMPOT JR.
Filed: May 27, 1957
POTENTIOMETERS
Owned by: BOURNS, INC.
Serial Number: 72030720
PQ
Filed: May 27, 1957
ELECTRON TUBE
Owned by: AMPEREX ELECTRONIC CORPORATION
Serial Number: 72030813
