for clearing out The value of a trade mark met with a striking exemplifl cation in Louisville, Ky., recently. Milton J. Harvey St. Louis, Mo. The invention consists, essentially, of a se- rivers and harbors, and for mining and other purposes. It of New York, member of ries of beveled rings placed… … the outside are forced against the pis- tented an improved ditching machine, HEWITT'S PISTON ROD PACKING. ton rod, while the rings that are beveled by which the soil slice is divided into on the inside are forced against the two equal parts by the central cutter of the ditching wheel, and carried…
Patents · Improved · Iron · Patented · Scientific American · Feet · Trade mark · Ten minutes · Improved device · Feet long · Piston rod · Valuable paper · Wrought iron · Yellow fever · Stuffing box
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