RECORDERS AND REPRODUCERS EMPLOYING MAGNETIC TAPE AND DISCS FOR RECORDING OR REPRODUCING VISUAL IMAGES, SOUND OR OTHER DATA; ELECTRONIC APPARATUS FOR USE WITH AND SYSTEMS PRINCIPALLY CONSISTING OF MAGNETIC TAPE AND DISC RECORDERS AND REPRODUCERS; PRERECORDED AND BLANK MAGNETIC TAPE AND TAPE STORAGE DEVICES--NAMELY CASSETTES, CARTRIDGES AND OPEN REELS
Electrical and Scientific Apparatus