& VACUUM MACHINERY CO. aGGessori&a. Excavating machine, G. Holmes 933.451 St. Johns. Dept. S. A., 519 No. Taylor Ave., St. Lonis, Mo., U. S. A. Excavator, R. E. Watson ...933.683 The best for isrnition and light. GRAY MOTOR CO., It tub Street, Detroit, Midi. (Representatives wanted in every… … 361 Broadway, New York Sand 8 Lock Street, Buffalo, N. Y. L. DUERDEN, - Port Washington, L. 1., N. V 933,431 Gas Igniting device, W. Grlx tfeate mention the SCIENTIFIC AMERICAN when writing to advertiser
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