73018933
Apr 16, 1974
Oct 7, 1975
AUDIO-VISUAL EQUIPMENT-NAMELY, APPARATUS FOR RECORDING OR REPRODUCING TELEVISION SIGNALS ONTO OR FROM INFORMATION CARRIERS; PRE-RECORDED AND BLANK INFORMATION CARRIERS-NAMELY, GROOVED CARRIERS, PARTICULARLY FOR PRESSURE SCANNING; AND PRE-RECORDED CARRIERS WITH OR WITHOUT GROOVES
Electrical and Scientific Apparatus