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Scientific American, Vol. 89, No. 6 (August 8, 1903) (1903)

leaf 10

An illustration from Scientific American, Vol. 89, No. 6 (August 8, 1903), 1903, leaf 10
F. The coupling connects with the In order to prevent rain and moisture from enter- We illustrate herewith a toy picture exhibitor for tube extending integrally from the bulb in which the ing the car at the joints of the roof sections, the s@c- which a patent has recently been procured by Mr.… … forcing the mercury into the new bulb, after which the the object of securing these patents, and on his re- operation is repeated as described above. A spring turn the details of the invention will be made public. A NOVEL PICTURE EXHIBITOR. catch which engages the hand wheel serves to firmly He has…

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