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Combined Swingletree and Evener.
Patent, including illustrations, for improvements to combined swingletrees and eveners, tools used to equalize strain between a draft animal and vehicle, "which is easily and simply constructed, inexpensive to manufacture, and one which will be very efficient in operation" (lines 22-25).
Date:
March 16, 1920
Creator:
White, Floyd N.
System:
The Portal to Texas History