SOPER, Circuit Judge.
This is a suit in equity wherein Emile C. deStubner seeks an accounting and a judgment against the defendants in the approximate sum of $2,025,000 for royalties alleged to be due him for the use of certain patents, inventions and discoveries relating both to processes for the manufacture of so-called dustless carbon black and also to the art and science of pigment dispersion. The suit involves also the claim that certain patents for processes...
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