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> Lumetron photoelectric colorimeter mod. 400 -a .vintage
Lumetron photoelectric colorimeter mod. 400 -a .vintage
LUMETRON PHOTOELECTRIC COLORIMETER Mod. 400 -A .
It contains instructions: OPERATION - REPRODUCIBILITY - TEST TUBES - SCALES - ZERO ADJUSTMENT OF POINTER - BALANCING OF LIGHT BEAM - LAMP - POWER LINE - FILTERS.. PHOTOVOLT CORPORATION , NEW YORK CITY. Its box is of oak wood