NITRO-NOBEL A.B. Trademarks
SEISTECTOR
Filed: February 13, 1974
RECORDING SEISMOGRAPHS
Owned by: NITRO-NOBEL A.B.
Serial Number: 73013377
LOG II
Filed: July 10, 1981
Seismic and Sound Detecting and Recording Monitors
Owned by: NITRO-NOBEL A.B.
Serial Number: 73318380
