Testing apparatuses not for medical purposes, namely, for use and the testing of antibodies, enzymes, nucleic acids, cells, proteins, aptamers, peptides, and molecularly imprinted polymers; Surveying apparatuses and instruments; Precision measuring apparatuses for measuring size, crystal form, pressure, particle size, density; Measuring instruments for measuring size, crystal form, pressure, particle size, density; Protractors; Teaching apparatus in the nature of ovens for laboratory use, chr...