Herbert Heitkamp und United States Patent - Info zur Person

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Official Gazette of the United States Patent and Trademark ...

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... Dieter Stuckmann , Selm , and Herbert Heitkamp , Werne , both of Michael A. Richardson , Hindhead , England , assignor to Marcon i serial set Fed .

Official Gazette of the United States Patent and Trademark Office:...

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... AND METHODS OF CONTROLLING THE OPERATION OF TUNNELLING APPARATUS Walter Weirich, Dortmund, and Herbert Heitkamp, Werne, both of Fed.

Official Gazette of the United States Patent and Trademark Office:...

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Dieter Stuckmann, Selm, and Herbert Heitkamp, Werne, both of Michael A. Richardson, Hindhead, England, assignor to Marcon a collar having a spherical ...