ELECTRICAL CABLE GUIDE SYSTEM FOR INSTALLING CABLE OR A SIMILAR PRODUCTS THROUGH A SUSPENDED CEILING AREA, NAMELY A DART, A DART LOADING DEVICE, A LINE AFFIXED TO THE DART, AND A TAKE-UP REEL FOR THE LINE MAY BE ATTACHED TO A CABLE, AND THE AND LINE PULLED BACK THROUGH A SPACE TRAVERSED BY THE CABLE

CLOSED CIRCUIT AND BROADCAST TELEVISION APPARATUS COMPRISING MULTIPLE TELEVISION CAMERAS INTEGRATED BY A SWITCHING CONTROL CENTER