STEINHEIL

PHOTOGRAPHIC AND OTHER OBJECTIVES, OCULARS, TELESCOPES, FIELD GLASSES, PHOTOGRAPHIC CAMERAS, SPECTROGRAPHS, OPTICAL LENSES FOR TELEVISION, PROJECTORS AND OPTICAL VITREOUS GOODS-NAMELY, LENSES AND OBJECTIVES, COATED WITH INTERFERENCE LAYERS FOR THE PURPOSE OF DIMINISHING OR INCREASING REFLECTIONS FROM THE SURFACES THEREOF, AND FOR THE PURPOSE OF FILTERING OR TRANSMITTING HEAT