Ear plug

Medical and laboratory equipment – Prophylactic article – Ear plug or nose clip

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D03666964

REFERENCES:
patent: Re29487 (1977-12-01), Gardner, Jr.
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patent: 4434794 (1984-03-01), Leight
patent: 4540063 (1985-09-01), Ochi et al.
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patent: 5080110 (1992-01-01), Weldon et al.
patent: 5195539 (1993-03-01), Dyrud et al.
patent: 5249309 (1993-10-01), Berg et al.
Shell Chemical Company Technical Bulletin SC:1032-88, Kraton Thermoplastic Rubber Medical Products (May 1988).
Provisional Technical Bulletin for Kraton G-2706, GLS Plastics (Aug. 1989).
Santoprene Monsanto Elastomer brochure TPE 74-01 prior art.

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