HUNT, Circuit Judge.
This is an appeal by Hauser from an interlocutory decree sustaining letters patent No. 1,256,839, issued February 19, 1918, to A. C. Soule, and finding infringement of claims 1 and 8. Defendant pleaded noninfringement and invalidity of the patent.
The patent relates to the mounting and control of casement windows in which the sash is mounted on vertical pivots adjacent to one edge thereof and slidably guided on the sill at the bottom of...
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