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Scientific American, Vol. 29, No. 16 (October 1873) (1873)
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ter, and ar- ing, that is, the weight ranged in connection of one exactly counter- with a spiral or other balances that of the spring. By this means other, and in order to the rod being suitably move them it is only graduated, a balance is mecessary that a suffi- formed which indicates cient force… … © 1873 SCIENTIFIC AMERICAN, INCPatents · Iron · Consists · Improved · Machine · Scientific American · Furnish · Steam engines · Fossil man · Patent office · Cast Iron · Secondary couple · Yielding pressure · Horse power · Address munn · Cubic feet
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