American Instrument Company Time and Longitude Oxford Instruments Cryomagnetic Systems Aerostatics / Aerodynamics ADAM II. alcyon Electronic Instruments Electricity Astronomy PERKIN ELMER 241 FOSTER Optics Model 44A 850 A Hydrostatics / Hydrodynamics Model FN Packard Instrument Company Nuclear and Atomic Physics 312 Telescopes Meteorology Bruker ER 200D - SRC Copenhagen Calculating machines General Radio CVE 401- Cooke Vacuum Products Α 3000 Perkin Elmer 356 Christian Becker Geodesy HSBP 33710 Magnetism MM1m Perkiln Elmer System 714 LTD Instron Nuclear Chicago Mechanics Thor Taylor Winfield MSE Measures Marine Chronometer Telecommunication Thermodynamics GallenKamp Demonstration apparatus SS-3 SORVALL superspeed centrifuge model 246 SEM 515 Mettler BALZERS Acoustics PHLIPS