ST. SURE, District Judge.
Plaintiff, as the assignee of patent No. 1,584,644, issued to Hugo Petzoldt of date May 11, 1926, sued defendant for an injunction against infringement and for an accounting. The defense is that Petzoldt was not the first inventor of the thing patented, claim of invalidity, and denial of infringement.
The patent is for a power lift device for heavy earth-working tools, such as subsoil plows, cultivators, road levelers, and roadbuilding...
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