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Scientific American, Vol. 91, No. 22 (November 1904) (1904)

leaf 3

An illustration from Scientific American, Vol. 91, No. 22 (November 1904), 1904, leaf 3
The Artists Ladderfolded. Arrangement of the Ladder forPhotographic TTse. AUTOMATIC STEP-LADDEES. How the Ladder isCarried. heavy weight of the vehicle. The wheel hubs run onplain phosphor-bronze bearings and the axles are madein one piece of best steel. The car is driven by a four-cylinder…

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