Ear cup

Equipment for safety – protection – and rescue – Body restraint or protective covering – Face – mouth – or ear

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Patent

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D03755843

REFERENCES:
patent: D206256 (1966-11-01), Boyer
patent: D239787 (1976-05-01), Lonnstedt
patent: D276855 (1984-12-01), Falco
patent: D298670 (1988-11-01), Palmaer
patent: D313092 (1990-12-01), Nilsson
patent: D323043 (1992-01-01), Lofton
patent: 4133053 (1979-01-01), Lundin
patent: 4958697 (1990-09-01), Moody
patent: 5068923 (1991-12-01), Sjoqvist

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