• 62 Centcrst., New York. Working Models, Exper-imental Machinery,Gear Cutting,& Stud & Rivet Turning THOSE WISH- ing to secure their rightsby Letters Patent Are referred to an advertisement on another pag« Aii Illustrated Pam-phlet containing the Pat-tent Laws, and full par-ticulars… … ) 1869 SCIENTIFIC AMERICAN, INC.
Patents · Exhibited · Assignor · Boiler · Iron · Spontaneous ignition · Antedated · Small quantity · Patent laws · Patent office · Additional force · Scientific American · Sulphuric acid · Roquefort cheese · Wrought iron · Years ago
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