AUGUSTUS N. HAND, District Judge.
This is a suit for infringement of United States letters patent No. 1,127,660 to John H. McMichael, granted February 9, 1915, claims 2, 4, 6, 17, 21, 22, 28, 34, and 35.
The invention has for its object to provide a method of and an apparatus for elevating and transporting concrete. The patentee describes concrete in the specification as "a composition containing relatively large pieces of rock or stone as uniform in size...
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