Apparatus and instruments for astronomy; telescopes; tripods for cameras; filters for ultraviolet rays for photography; filters for use in photography; spectroscopes; spectrograph apparatus; mounting devices for cameras and monitors; astronomical telescopes; observation instruments; astrometric apparatus and instruments; astronomical spectrographs; focusing circuits; filters for optical devices; lens filters [for cameras]; coaxial cables incorporating filters
Apparatus and instruments for astronomy; telescopes; tripods for cameras; filters for ultraviolet rays for photography; filters for use in photography; spectroscopes; spectrograph apparatus; mounting devices for cameras and monitors; astronomical telescopes; observation instruments; astrometric apparatus and instruments; astronomical spectrographs; focusing circuits; filters for optical devices; lens filters [for cameras]; coaxial cables incorporating filters
Apparatus and instruments for astronomy; telescopes; tripods for camer...