71533946
Sep 9, 1947
Sep 6, 1949
TELEPHONIC RECEIVING AND TALKING INSTRUMENTS, TELEPHONIC SWITCHBOARDS, TELEPHONIC CENTRAL EXCHANGE APPARATUS, TELEPHONE LINE APPARATUS FOR INTERCONNECTING SAID RECEIVING AND TALKING INSTRUMENTS WITH SAID CENTRAL EXCHANGE, APPARATUS, AND PARTS THEREOF; AND SOUND SYSTEMS-NAMELY, INTERCOMMUNICATING SYSTEMS OF THE INTEROFFICE TELEPHONIC TYPE, AND PARTS THEREOF
Housewares and Glass