Holter recorder testing device

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Description

FIG. 1 is a isometric view from the front and above _of my new design for Holter recorder testing device;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is one side view of the new design, the _ opposite side being shown in FIG. 6; and

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D183879 November 1958 Emerson
2732491 January 1956 Jeannot
4081022 March 28, 1978 Wester
Other references
  • Heathkit Christmas 1979 Cat. #847, p. 59, Test Instruments at top left and bottom right.
Patent History
Patent number: D263033
Type: Grant
Filed: Jul 5, 1979
Date of Patent: Feb 16, 1982
Inventor: George M. Calhoun (Villanova, PA)
Primary Examiner: Nelson C. Holtje
Attorney: Walter B. Udell
Application Number: 6/54,664
Classifications
Current U.S. Class: Provided With Handle, Or Hand-held (D10/78)
International Classification: D1004;