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(61 - 80 of 84)
Galvanometer, DC, moving coil, reflecting type R
Dietzgen odometer
Beam compass
Keuffel and Esser drafting set
Inscription devices
Electroscope, quartz fiber
Geiger counter
Electroscope, quartz fiber
Cylindrical calculator
Planimeter
Proportional dividers
Telescope pattern, Palomar 200″
Planimeter
Rolling parallel ruler
Integrator
Tower drafting compass
Geiger counters, small
Cloud chamber made by Willy Fowler--2 views
Wild Heerbrugg Theodolite
Cloud chamber, pieces