Word Meanings - GRAPHISCOPE - Book Publishers vocabulary database

See GRAPHOSCOPE

Related words: (words related to GRAPHISCOPE)

• GRAPHOSCOPE
  An optical instrument for magnifying engravings, photographs, etc., usually having one large lens and two smaller ones.
• TELEGRAPHOSCOPE
  An instrument for telegraphically transmitting a picture and reproducing its image as a positive or negative. The transmitter includes a camera obscura and a row of minute selenium cells. The receiver includes an oscillograph, ralay, equilibrator,