SCHOONMAKER, District Judge.
This is a patent suit involving claims 8, 9, 12, 14, 15, 16, and 17 of Peik Patent No. 1,953,566, dated April 3, 1934, for a blasting machine of a centrifugal type, intended for the projecting of abradant particles such as sand, shot or other grits. The invention is said to rest in the directional properties of the machine, in that it is possible to project the blast over a desired limited zone. There is no limitation as to the type of...
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