ENGINES A,-.iD BOILERS iS M.BINGHAM Ui! $1 ) a day at home. Agents wanted. Outflt and_. terms free. TRUE & Co., Augusta, Maine. IMPROVED CEMENT PIPE MACHINERY—for making either bevel or huh-Joint pipe—furnished,and use of same licensed under patents established by U. S.District Court.… … rrr^roT^ w8a a ■4 m p «! K9 a B37~ For further Information, send for Circular. PHIL.O AND IRA KNAPP,Dunbury, Conn. TTOW TO MAKE SPIRAL SPRINGS. By_L JL Joshua Rose. With three engravings of the tools,w hlch are easily made, and complete practical directionsfor working, including Hardening and…
Patents · Improved · Inches · Consists · Scientific American · Lathe · Steam engine · Find directions · Sulphuric acid · Nitric acid · Professor mayer · Horse power · Patent issued · York city · Copy scientific
Internet Archive · Public Domain Mark 1.0. Free to use for anything.