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Scientific American, Vol. 41, No. 14 (October 1879) (1879)

leaf 7

An illustration from Scientific American, Vol. 41, No. 14 (October 1879), 1879, leaf 7
, has invented poses the expense could also be halved, by substituting elec- scope is powerful, and has an achromatic objective. The compass needle is 5 inches long, and the whole is made with an improved drag sawing machine, so constructed that it tric currents generated by very large steam… … saws can be used until they are actually worn on to the other branch pipes in the same main FAUTH & CO.'S ENGINEERING TRANSIT. out or worn down too small for use. would be diminished, a result causing serious An improvement in smoke stacks has been pat- inconvenience in the case of electric…

Patents · Magnetic · Bushels · Grain · Needle · Scientific American · Pole · Provisional protection · Magnetic field · North Pole · Steam engine · Export edition · Small steam · American export · Patent office · Iron filings

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