DAVIDSON, District Judge.
This is a patent case. The complainant, Hughes Tool Company, charges an infringement upon a patented drilling bit. The complainant operates a large plant employing some 3,600 persons at Houston, Texas. The defendant is a blacksmith or a welder, employing himself and his son. The drilling bit, sometimes referred to as a rotary bit, contains three pieces of cone-shaped steel, fastened within a partial housing to the end of a drill stem, used...
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