Sinus mask

Medical and laboratory equipment – Equipment for diagnosis – analysis – or treatment – Article for topical care – nursing or rehabilitation

Patent

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2404

Patent

active

D03962946

REFERENCES:
patent: D258532 (1981-03-01), Wagner
patent: 2237971 (1941-04-01), Padelford
patent: 2626343 (1953-01-01), Fogel et al.
patent: 3140390 (1964-07-01), Smith et al.
patent: 3173419 (1965-03-01), Dubilier et al.
patent: 4243041 (1981-01-01), Paul
patent: 4614189 (1986-09-01), MacKenzie
patent: 5628772 (1997-05-01), Russell

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