CHADWICK-HELMUTH COMPANY Trademarks
SLIP-SYNC
Filed: January 23, 1962
STROBOSCOPIC LIGHT SYNCHRONIZERS
Owned by: CHADWICK-HELMUTH COMPANY
Serial Number: 72136344
SWEEP-SYNC
Filed: January 23, 1962
PULSE SYNCHRONIZERS
Owned by: CHADWICK-HELMUTH COMPANY
Serial Number: 72136345
VMS SAMPLER
Filed: January 23, 1962
VIBRATION MEASURING SYSTEM, WHICH CREATES SLOW-MOTION REPLICAS OF AUDIO FREQUENCY SIGNALS
Owned by: CHADWICK-HELMUTH COMPANY
Serial Number: 72136346
DIGI-MARK
Filed: January 23, 1962
DEVICES FOR COUNTING ELECTRICAL IMPULSES, COMMONLY KNOWN AS PULSE COUNTERS
Owned by: CHADWICK-HELMUTH COMPANY
Serial Number: 72136347
