WARLICK, District Judge.
This is a patent suit in which the plaintiffs charge infringement. The defendants set up the defenses of invalidity, non-infringement, unfair competition, and alteration of original application specifications.
The plaintiff, Honolulu Oil Corporation is a Delaware corporation with its principal place of business in San Francisco, California. The plaintiff, Barker Poultry Equipment Company is an Iowa corporation with its main office...
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