ABACUSES; ACID HYDROMETERS; ACTINOMETERS; ADDING MACHINES; AEROMETERS; AIR TANKS FOR USE IN SCUBA DIVING; ALTIMETERS; AMMETERS; ANEMOMETERS; ANTENNAS; ARM RESTS FOR USE WITH COMPUTERS; AUTOMATIC TELEPHONE DIALERS; AUTOMATIC VALVES; BAR CODE READERS; BAROMETERS; BASEBALL BATTING HELMETS; BATTERIES FOR VEHICLES; BATTERIES; BATTERY CHARGERS; BINOCULARS; BLANK MAGNETIC COMPUTER TAPES; BULLET-PROOF VESTS AND CLOTHING; CALCULATORS; CALIBRATED GLASSWARE; CAMERA CASES; CAMERA FILTERS; CAMERA TRIPODS;...