Electrical and scientific apparatus Trademarks Filed in September 8, 1941
HYPEX
Filed: September 8, 1941
LOUD SPEAKERS, EACH SAID LOUD SPEAKER INCLUDING AN ELECTRO-ACOUSTIC TRANSDUCER
Owned by: JENSEN RADIO MANUFACTURING COMPANY
Serial Number: 71446877
SPEECH-MASTER
Filed: September 8, 1941
LOUD SPEAKERS, EACH SAID LOUD SPEAKER INCLUDING AN ELECTRO-ACOUSTIC TRANSDUCER DRIVER UNIT AND PARTS THEREOF
Owned by: JENSEN RADIO MANUFACTURING COMPANY, CHICAGO
Serial Number: 71446878
