Stethoscope head

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Description

FIG. 1 is a perspective view of a stethoscope head showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a side view showing the left side, the right side being a mirror image thereof; and

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D205171 June 1966 Littmann
D213257 January 1969 Littmann
D214002 April 1969 Machlup et al.
D256951 September 16, 1980 Allen
3108652 June 1960 Littman
3303903 February 1967 Speelman
3339667 September 1967 Speelman
3470975 October 1969 Haiken
3472335 October 1969 Allen
3570625 March 1971 Allen
Patent History
Patent number: D277890
Type: Grant
Filed: May 12, 1982
Date of Patent: Mar 5, 1985
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventors: Jane W. Loughridge (Arden Hills, MN), Thomas J. Packard (Somerset, MN)
Primary Examiner: Catherine E. Kemper
Attorneys: Donald M. Sell, James A. Smith, Robert W. Sprague
Application Number: 6/377,376
Classifications
Current U.S. Class: D24/20