BH
MICROSCOPES, PARTS AND ACCESSORIES THEREOF-NAMELY, EYEPIECES, OBJECTIVES, BINOCULAR TUBES, TRINOCULAR TUBES, DUAL OBSERVATION TUBES, OPTICAL ILLUMINATORS, OPTICAL ILLUMINATION BULBS, TRANSFORMERS, CONDENSERS, FILTERS, METAL SLIDES, MIRROR FOR TRANS-ILLUMINATION PHOTOMICROGRAPHIC CAMERAS, PHOTOMICROGRAPHIC EXPOSURE METERS, MECHANICAL STAGES, AUXILIARY CONDENSER LENSES, PHASE CONTRAST ATTACHMENTS, MICRO VIEWING SCREENS, DUST COVERS AND CABINETS
Expired · June 10, 1975 · 73054698 ·