Ear plug

Details Ear plug Ear plug

1995-09-25

1997-02-18

Zarfas, Louis S.

Medical and laboratory equipment

Prophylactic article

Ear plug or nose clip

Patent

active

D03781275

REFERENCES:
patent: D277317 (1985-01-01), Eisenmenger
patent: D292530 (1987-10-01), Andersson
patent: D331966 (1992-01-01), Gardner, Jr.
patent: D338267 (1993-08-01), Scholey
patent: 2670737 (1954-03-01), Canton
patent: 3259128 (1966-07-01), Leight
patent: 4461290 (1984-07-01), Gardner, Jr. et al.
patent: 4490857 (1985-01-01), Leight et al.
patent: 4671265 (1987-06-01), Anderson
patent: 5298691 (1994-03-01), Leight

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