73216354
May 21, 1979
Oct 7, 1980
Instruments for Testing the Hardness of Materials, Table Microscopes, Stereo Microscopes, Industrial Cameras, Electric Furnaces and Electric Hot Plates for Laboratory Use, Metallographs-Namely, Instruments Combining a Microscope with a Camera, and Closed Circuit Television Systems for Industrial Use
Electrical and Scientific ApparatusXenon Illuminators-Namely, High Intensity Electric Light Sources for Use with Metallographs
Environmental Control Apparatus