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Scientific American, Vol. 90, No. 6 (February 1904) (1904)

leaf 10

An illustration from Scientific American, Vol. 90, No. 6 (February 1904), 1904, leaf 10
superin- ment with notches in the pins. One end of the lock nected by a tubular sleeve slipped over their inner tending the operation of a new track-laying machine bar is extended to form a handle. A pin secured to ends. One end of this sleeve is connected with one of which he was the inventor and… … spring metal sides close over the coin, and hold it AN IMPROVED LIFTIKG JACK. AUTOMATIC TRACK GAGE. © 1904 SCIENTIFIC AMERICAN, INC.

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