73072834
Dec 24, 1975
Apr 12, 1977
OPHTHALMIC LENSES AND FRAMES; PROTECTIVE GLASSES AND LENSES THEREFOR; CONTACT LENSES; MATERIALS AND INSTRUMENTS USED BY OPTOMETRISTS AND OPHTHALMOLOGISTS FOR THE EXAMINATION AND CORRECTION OF VISION-NAMELY, FOCOMETERS; PUPILMETERS AND KERATOMETERS; SKIASCOPES; READING SCALES; RANGE AND DISTANCE FINDERS; TACHOMETERS; THEODOLITES; LEVELS; SURVEYOR POLES AND SEXTANTS; BAROMETERS; THEMOMETERS; COMPASSES AND MAGNIFYING GLASSES
Electrical and Scientific Apparatus