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Scientific American, Vol. 92, No. 13 (April 1905) (1905)

leaf 17

An illustration from Scientific American, Vol. 92, No. 13 (April 1905), 1905, leaf 17
Scientific American 274 April i, 1905. Pole attachment, vehicle stiff, F. L. Meckel. 785,368 Polish rod fastener, Kennedy & McGonigal. 785,501 THE IMPROVED Power operated switch, J. M. Andersen .... 785,397 … ing apparatus, G. H. Cravens 785,252 Railway, electric, T. Mahoney 785,315 Lies flat io the [eg — Railway frog, Kyle & Cress 785,559 Makes everyone your neighbor—the Railway safety device, F. C. Foster 785,208 Never slips,tears nor Railway signal, M. D. Hanlon 785,098 Railway signal, P. S. Dorlon…

Camphor · Device · Chicago · Patents · Trade marks · Scientific American · Outer surface · Mutual rubber · Trade mark · Bell crank · George washington · Thumb piece · Clamping plates · American april

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