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Scientific American, Vol. 43, No. 12 (September 1880)
1880 · 13 pictures
Patented · Patents · Caoutchouc · Caisson · Scientific American · Conch · Wrought iron · Wood working · Trade catalogs · Oil tanks · Machine shop · Air chamber · Patent issued · Rock drill · Twenty years
Internet Archive · Public domain (published before 1931) · More from this library