Casing Point or Strainer.
Description:
Patent for casing point or strainer "particularly adapted for use in oil and Artesian wells... which will permit free circulation of the liquid around the lower portion of the casing and free and easy entrance of the same into the casing, and yet will prevent entrance of sand and gravel into the casing" (Lines 12-22).
Date:
May 13, 1902
Creator:
Carlson, Andrew Edward
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department