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DEL MAR ENGINEERING LABORATORIES v. PHYSIO-TRONICS

No. 78-3515.

642 F.2d 1167 (1981)

DEL MAR ENGINEERING LABORATORIES, Plaintiff-Appellee, v. PHYSIO-TRONICS, INC., Defendant-Appellant.

United States Court of Appeals, Ninth Circuit.

Decided March 23, 1981.

Attorney(s) appearing for the Case

Henry M. Bissell, Los Angeles, Cal., for defendant-appellant.

Mario A. Martella, Los Angeles, Cal., for plaintiff-appellee.

Before NELSON and BOOCHEVER, Circuit Judges, and WILLIAMS, District Judge.

BOOCHEVER, Circuit Judge:

Del Mar Engineering Laboratories (Del Mar) is the assignee of patent # 3,267,934. Claims one through eight of this patent relate to a device for measuring electrically the "ST segment" of the human heartbeat. Physio-Tronics, Inc., is the southwest distributor of Quinton Instruments, a Washington corporation. Del Mar brought this suit against Physio-Tronics alleging infringement of its patent by two devices produced by Quinton Instruments...

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