MANDREL INDUSTRIES, INC. Trademarks
ELECTRO-TECH
Filed: September 4, 1958
HYDROPHONES, SEISMOMETERS, GALVANOMETERS, OSCILLOGRAPHS, PHOTOGRAPHIC DEVELOPING UNITS COMPRISING A COMPACT CASE WITH SOLUTION…
Owned by: MANDREL INDUSTRIES, INC.
Serial Number: 72058358
M
Filed: January 9, 1963
GEOPHYSICAL APPARATUS-NAMELY, HYDROPHONES, SEISMOMETERS, GALVANOMETERS, OSCILLOGRAPHS, PHOTOGRAPHIC DEVELOPMENT UNITS, ELECTRONIC…
Owned by: MANDREL INDUSTRIES, INC.
Serial Number: 72160430
AUTOMAN
Filed: May 15, 1964
GEOPHYSICAL SIGNAL RECORDING INSTRUMENTS
Owned by: MANDREL INDUSTRIES, INC.
Serial Number: 72193560
THUMPER
Filed: June 15, 1970
GEOPHYSICAL EXPLORATION EQUIPMENT-NAMELY DEVICES FOR GENERATING AND RECEIVING SEISMIC WAVES
Owned by: MANDREL INDUSTRIES, INC.
Serial Number: 72362711
