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TECHNOGRAPH PRINTED CIR., LTD. v. MARTIN-MARIETTA CORP.

Nos. 72-1597 to 72-1600.

474 F.2d 798 (1973)

TECHNOGRAPH PRINTED CIRCUITS, LTD., and Technograph Printed Electronics, Inc., Plaintiffs-Appellants, v. MARTIN-MARIETTA CORPORATION, Defendant-Appellee. TECHNOGRAPH PRINTED CIRCUITS, LTD., and Technograph Printed Electronics, Inc., Plaintiffs-Appellants, v. WESTINGHOUSE ELECTRIC CORPORATION, Defendant-Appellee. TECHNOGRAPH PRINTED CIRCUITS, LTD., and Technograph Printed Electronics, Inc., Plaintiffs-Appellants, v. McDONNELL AIRCRAFT CORPORATION, Defendant-Appellee. TECHNOGRAPH PRINTED CIRCUITS, LTD., and Technograph Printed Electronics, Inc., Plaintiffs-Appellants. v. INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION, Defendant-Appellee.

United States Court of Appeals, Fourth Circuit.

Decided February 20, 1973.

Attorney(s) appearing for the Case

Sidney Bender, New York City (Aaron Lewittes, Leventritt, Lewittes & Bender, New York City, on brief), for plaintiffs-appellants.

Edward F. McKie, Jr., Washington, D. C. (Benjamin C. Howard and Miles & Stockbridge, Baltimore, Md., on brief), for defendant-appellee, Martin-Marietta Corp.

William E. Schuyler, Jr., Schuyler, Birch, Swindler, McKie & Beckett, Washington, D. C., on brief, for defendant-appellee, Westinghouse Electric Corp.

Jervis Spencer Finney, Ober, Grimes & Shriver, Baltimore, Md., Charles H. Walker, Albert E. Fey and Fish & Neave, New York City, on brief, for defendant-appellee, McDonnell Aircraft Corp.

Dana M. Raymond, Brumbaugh, Graves, Donohue & Raymond, New York City, Norwood B. Orrick and Venable, Baetjer & Howard, Baltimore, Md., on brief, for defendant-appellee, International Telephone and Telegraph Corp.

Before BUTZNER, FIELD and WIDENER, Circuit Judges.

WIDENER, Circuit Judge.

These cases arose when the plaintiffs (appellants) filed patent infringement suits against the defendants (appellees) in the United States District Court for the District of Maryland. The plaintiffs are, respectively, the owner and exclusive licensee under Eisler's United States Patent No. 2,706,697 ('697).1 The complaints allege that the defendants infringed Claims 4 and...

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