UNT Libraries Government Documents Department - 2 Matching Results

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Reamer.

Description: Patent for a reamer with a hexagonal shaped body and shell, central hub, a series of plates, springs, and metal dogs. Used for reaming well drilling tubes, which are used to drill artesian wells and deep water, and for cleaning out the reamer's own interior.
Date: April 24, 1911
Creator: Sly, Charles
Item Type: Refine your search to only Patent

Weed-Killing Composition

Description: Patent for "new and useful composition of matter designed for killing and preventing the growth of weeds and noxious grasses, and is particularly designed for killing and preventing the growth of Bermuda and Johnson grasses." (lines 9-14)
Date: April 24, 1912
Creator: Owen, Hillery O.
Item Type: Refine your search to only Patent
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