Ergonometric stethoscope chestpiece

Details Ergonometric stethoscope chestpiece Ergonometric stethoscope chestpiece

1991-02-20

1993-07-13

Reid, Stella

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Hand manipulated tool or instrument

Patent

active

D03373819

REFERENCES:
patent: D213257 (1969-01-01), Littmann
patent: D214002 (1969-04-01), Machlup et al.
patent: D224988 (1972-10-01), Hudspith
patent: D256951 (1980-09-01), Allen
patent: D277890 (1985-03-01), Loughridge et al.
patent: D323394 (1992-01-01), Casto et al.
patent: 3790712 (1974-02-01), Andries
patent: 4071694 (1978-01-01), Pfeiffer
patent: 4170717 (1979-10-01), Walshe
patent: 4254302 (1981-03-01), Walshe
patent: 4440258 (1982-05-01), Packard
patent: 4723555 (1988-02-01), Shue
patent: 4805633 (1989-02-01), Kotani et al.
patent: 4878501 (1989-11-01), Shue

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