Inside Out Library · Explore
Scientific American, Vol. 37, No. 14 (October 1877) (1877)
leaf 3
- other copy is legible to people having the use of their eyes. The device affords a means of two blind persons maintain- taken to aid the exploration of a mining district. Other turies, may be gathered from the fact that at the present great adits, such as those of the Hartz mountains and the time… … the nail, leaving it free to fall, but as its lead, especially where sulphur compounds NAIL FORGING MACHINE. weight is not sufficient to insure this happen- exist or may be generated. © 1877 SCIENTIFIC AMERICAN, INCImproved · Patents · Furnish · Object · Plow · Consists · Scientific American · Formed · Oil chamber · Improved machine · Inner ends · Side pieces · American supplement · Rapid transit · Small quantity · Plow beams · Improved car
Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 37, No. 14 (October 1877)
More like this
