TUTTLE, District Judge.
The amended bill of complaint in this case asserted infringement of six patents. Four of these, the patents to Winston, No. 1,197,166, to Currier, No. 1,316,477, to Sparks, No. 1,358,182, and to Shull, No. 1,566,622, were withdrawn prior to the opening of the trial in court. This leaves but two patents to be here considered, namely, No. 1,428,762, to Currier, and No. 1,438,170, to Currier.
Patent No. 1,428,762 relates to those features...
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