74129457
Jan 11, 1991
Jul 28, 1992
components of a chromatography apparatus; namely, capillary chromatography columns, compressed gases, refill cartridges, inlet sleeves, porous layer open tubular columns, particle traps, inlet splitter guides, syringes, tool kits for installing and maintaining capillary columns, and deactivated injection port sleeves
Electrical and Scientific Apparatus