Dual earplug

Details Dual earplug Dual earplug

1997-06-23

1999-02-09

Burgess, Pamela

Medical and laboratory equipment

Prophylactic article

Ear plug or nose clip

D24104, 2404

Patent

active

D04055217

REFERENCES:
patent: D303014 (1989-08-01), Gardner, Jr. et al.
patent: 315559 (1885-04-01), Schwarzchild et al.
patent: D378127 (1997-02-01), Brown
patent: 2538339 (1951-01-01), Thomas

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