Electronic tonal stethoscope
US D196699 S
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Description (OCR text may contain errors)
United States Patent 0 Des. 196,699 Patented Oct. 22, 1963 ELECTRONIC TONAL STETHOSCOPE Winslow B. M. Clark, Van Nuys, and Wallace R. Spark, Venice, Califi, assignors to Douglas Aircraft Company,
Inc., Santa Monica, Calif.
Filed Oct. 11, 1962, Ser. No. 72,067
Term of patent 14 years (Cl. D83-12) T1g 4-. f 1g 5.
FIGURE 1 is a perspective view taken from the top We claim:
and rear of an electronic tonal stethoscope embodying our new design, with a pair of ear pieces shown in broken lines for illustrative purposes only;
FIGURE 2 is a top plan view thereof;
FIGURE 3 is a side elevational view thereof;
FIGURE 4 is a front elevational view thereof; and
FIGURE 5 is a rear elevational view thereof..
The other side, not shown, of the electronic tonal stethoscope is similar to the side which is illustrated, and the bottom, not shown, is substantially plain.
The dominant features of our design reside in the portions shown in full lines.
The ornamental design for an electronic tonal stethoscope, substantially as shown and described.
References Cited in the file of this patent UNITED STATES PATENTS D. 96,050 Osterman June 25, 1935 D. 191,564 Mullin et al Oct. 10, 1961 585,525 Kellogg June 29, 1897 1,147,282 Turner July 20, 1915 OTHER REFERENCES American Hospital, Cat. #100, 1955, page 268, item No.1, amplifying stethoscope.