Chromatography apparatus for laboratory use; laboratory equipment for use with chromatography instruments, namely, stands for use with chromatography equipment, compression modules, air manifolds, electrical grounding wires for dissipating static electrical charges, and sample injection modules in the nature of containers for loading separation samples into chromatography apparatus; laboratory kits comprising chromatography apparatus for laboratory use, namely, compression modules, pressure g...

CHEMICAL PRODUCTS FOR SCIENTIFIC PURPOSES USED IN CHROMATOGRAPHY

Precision measuring instruments, in particular spherometers for measuring the curvature of optical surfaces