75411681
Dec 29, 1997
Dec 7, 1999
PROGRAMMABLE CENTRAL CONTROLLERS, INTERFACE CARDS AND CARD CAGES, NAMELY, FRAMES IN WHICH CIRCUIT CARDS ARE MOUNTED AND ELECTRICALLY CONNECTED TO OTHER CIRCUIT CARDS AND CIRCUITS, SOLD SEPARATELY AND AS AN INTEGRAL COMPONENT OF REMOTE CONTROL SYSTEMS FOR USE WITH AUDIO, VIDEO AND LIGHTING EQUIPMENT
Electrical and Scientific Apparatus