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(141 - 160 of 247)
Air Flow Meter with Variometer
Typewriter, standard Underwood no. 5
Inscription devices
Potentiometer, International OHM, Model 5517
Spring balances (2)
Glassware, laboratory (4)
Slide rule in leather case
AIR-2 fuze
Electroscope, quartz fiber
Geiger counter
Mk156-158 fuze
Box, hand-made, grey-printed, wooden
pH meter, Model G
Electroscope, quartz fiber
Cylindrical calculator
Slide rule
Triode, high frequency (door knob), WE 316A
Battery, standard cell, Model no. 2892
AIR-1 fuze