Anti-Friction Sucker-Rod Coupling.
Description:
Patent for an anti-frictioin sucker-rod coupling. This invention relates to certain new and useful improvements in sectional sucker-rods for artesian, oil, and other wells, and has for its object to provide an improved construction of coupling-joint for connecting the sections of the rods together.
Date:
January 26, 1892
Creator:
Black, William L.
Item Type:
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Partner:
UNT Libraries Government Documents Department