• Environmental Controls (5)
• Geophysical & Meteorological Testing Equipment (1)
• Hydrometers, Exc Industrial Process (3)
• Measuring & Controlling Devices (1)
• Ophthalmic Goods (114)
• Optical Instruments & Lenses (1)
• Photographic Equipment & Supplies (50)
• Thermocouples (1)
• Toll Booths, Automatic (3)
• Turnstiles, Equipped With Counting Mechanisms (1)
• Watches, Clocks, Watchcases & Parts (27)