73000426
Sep 7, 1973
Apr 15, 1975
DUST COUNTING LABORATORY INSTRUMENTS, MOLD COUNTING LABORATORY INSTRUMENTS, BACTERIA COUNTING LABORATORY INSTRUMENTS, LABORATORY INSTRUMENTS FOR COUNTING THE CONSTITUENTS OF THE BODY FLUIDS, LABORATORY INSTRUMENTS FOR MEASURING THE SIZE OF CONSTITUENTS OF BODY FLUIDS AND MICRO-SLIDES AND COVERGLASSES FOR USE WITH MICROSCOPES
Electrical and Scientific Apparatus