3M 1810 Overhead Projector 78923668566 B&H Photo Video
3m Overhead Projector. 3M Overhead Projector Gray 120V 60Hz 4.5A 82W Bulb 2500 Lumens 9050 3M Quantum Overhead Projector 2770 - Compact High-Quality Display, New in Box The 3M 9100 overhead projector is easily portable and ready to go once you remove it from the box--there is nothing to be assembled
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Focal length range: 310 mm, Maximum shooting area: 28.5 cm Overhead Projector Model 2660; Overhead Projector Model 2660 - Operator's Guide Be the first to know about our latest. The post assembly that holds the projection head aloft is hinged against the body of the unit, and a loosening turn of a knob swings it into place.
3M 908 Overhead Projector OHP Acetate. Overhead Projector Model 2660; Overhead Projector Model 2660 - Operator's Guide Be the first to know about our latest. The post assembly that holds the projection head aloft is hinged against the body of the unit, and a loosening turn of a knob swings it into place.
3M Model 1750 Overhead Projector Acetate OHP. A Lot Of Scratches On The Base Glass; Supplied With Power Cable; 400 Watt Lamp; Built-In Carry Case. The process to develop 3M's overhead projector began in the late 1950s, when, according to A Century of Innovation: The 3M Story, physicist Roger Appeldorn was challenged by his boss to find a use for the transparency that was a by-product of the Thermo-Fax copier, which reproduced color images onto white paper.