transmission of Speech by all known teen pages of useful information and a large number of H. M. QUACKENBUSH, Manufacturer, Herkimer, N. Y., U. S. A. original engravings of new inventions and discoveries, forms of Electric Speaking Telephones in- representing Engineering Works, Steam Machinery,… … ness, on very reasonable terms. ODELL TYPKWRITFR CO., Pontine Bl^e:.. 'tjurffcn. A pamphlet sent free of charge, on application, con- taining full information about Patents and how to pro- INCANDESCENT AND ARC LICHT PLANTS. cure them; directions concerning Labels, Copyrights, Designs, Patents,…
Patents · Aluminum · Adapted · Water · Asks · Scientific American · Valve · Low pressure · Hot air · High pressure · Sheet metal · Educated man · Pressure cylinder · Liberally educated · Patent office · Horse power
Internet Archive · Public domain (published before 1931). Free to use for anything.