pneumatic filing machines and blades therefor, pneumatic sanders

Filer-Sander Machines, and Sanding Shoes and Burnishing Shoes for Attachment to Filing and Sanding Machines, and for Wire Brushes for Attachment to Filing and Sanding Machines

MECHANICAL CLAMPS

COMPUTERS, COMPUTER PERIPHERALS, AND COMPUTER PROGRAMS TO SIMULATE AIR TRAFFIC CONTROL AND TO TRAIN AIR TRAFFIC CONTROLLERS

COMPUTERIZED ARTIFICIAL INTELLIGENCE TRAINING SYSTEM NAMELY COMPUTERIZED AIR TRAFFIC CONTROL TRAINING SYSTEM

Real estate brokerage