H. Ward Leonard, Inc. v. Maxwell Motor Sales Co.

(after stating the facts as above). It is a way of stating a part of the defense herein to say that plaintiff has put in evidence, as its commercial product, something which does not respond to the patents in suit, although purporting to be manufactured pursuant to the same. Therefore an endeavor will be made to give, in language as simple and untechnical as possible, what I conceive to be the scheme of operation of that product — in evidence as Plaintiff’s Exhibit M1. It is called an “automatic dynamo controller.” The dynamo to be controlled is in operation, or at least in revolution,…