This is why Mr. Bourdin sought to solve gon,has patented an improvement in force pumps. the latter problem by the use of his plow, audit This is a simple and inexpensive form of pump, was by the aid of this apparatus that he per- which ma}' be used either for lifting or forcing formed the work… … in fact, is the speed reached by the inventor site edge bent downwardly, so that in the down- PLOW FOR LAYING ELECTRIC CABLES. during the work done by him in Russia. The ward movement of the dasher in the milk it will difficulty of plowing deep resides especially in be revolved in one direction,…
Patented · Machine · Baleen · Inches · Feet · Patents · Scientific American · Whale · High pressure · Copyright mark · Sewing machine · Sheet metal · Letters patent · Northern pacific · Years ago · Inner surface · Address munn
Internet Archive · Public domain (published before 1931). Free to use for anything.
