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Tank-Bottom Holder.
Patent for a tank bottom holder that allows a tank bottom to be "securely and accurately maintained in proper cooperative relation to the edge turning tool and readily manipulated in the required manner" (lines 13-17). That tank bottom holder can be adjusted to fit a variety of tank bottom sizes, and the patent includes illustrations and instructions.
Date:
August 11, 1914
Creator:
Smith, Walter O.
System:
The Portal to Texas History