Electrical and scientific apparatus Trademarks Filed in March 21, 1961
MARFEL
Filed: March 21, 1961
PHONOGRAPH RECORDS
Owned by: MORRIS FELDENKREIS
Serial Number: 72116113
ELECTROCARDIOCORDER
Filed: March 21, 1961
Cardiographs-Namely, a Miniature Tape Recorder Unit for Use in Conjunction Therewith
Owned by: Del Mar Avionics
Serial Number: 72116126
