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Scientific American, Vol. 97, No. 23 (1907) (1907)

leaf 25

An illustration from Scientific American, Vol. 97, No. 23 (1907), 1907, leaf 25
r, stop, reverse and brake. No live axles, friction clutches, differential gears, pumps, etc. Double hill-climbing power in reserve. Do not be induced to help some new inventor work out his experiments on you by buying a machine that has not been on the market more than a year. We are pleased to… … SCHERZER ROLLING LIFT BRIDGES Make it possible to navigate large modern vessels to Harbors, Docks, Interior Waterways and Interior Ports inaccessible where center pier swing bridges are built. Center pier swing bridges are obsolete. They form artificial obstructions blocking naviga- tion and…

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