Ear ventilation tube

Details Ear ventilation tube Ear ventilation tube

1994-08-08

1996-07-09

Reid, Stella

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Auricular

Patent

active

D03716066

REFERENCES:
patent: D239330 (1976-03-01), Shea, Jr.
patent: D274753 (1984-07-01), Armstrong
patent: 4775370 (1988-10-01), Berry

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