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Scientific American, Vol. 41, No. 5 (1879) (1879)

leaf 3

An illustration from Scientific American, Vol. 41, No. 5 (1879), 1879, leaf 3
or without sockets, and is not affected by the settling paper, and which is used for measuring the wear of bodies of the door or door frame. —as, for instance, that of the wheel tires. Its construction, Mr. William A. Yeatts, of Little River, Va., has patented as shown in the engraving, is very… … the bottle. pencil and the pin are both in the same An improved attachment, by means THE POLAR PANTOGRAPH. vertical plane, which also passes of which the forward part of an ordi- through the axis of the pinion, and that nary buggy may be converted into a sulky, has been patent- moval was done to…

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