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Scientific American, Vol. 40, No. 23 (1879) (1879)
leaf 7
the lower end, and a hollow wire wound stecring apparatus patented by the same around the upper end of the burner and inventor, and illustrated on page 191 of cur- ine concealed in the cup with its ends extend- rent volume of the ScrgNTIFIC AMERICAN, ill Aa ing to the base piece, one communicating… … being provided with teeth and helddown ther used in the steering apparatus pre- by a tripping device, viously described or in the hammer shown © 1879 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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