Earplug

Details Earplug Earplug

1979-01-05

1981-05-19

Ansher, Bernard

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Orthopedic or chiropractic

D2404

Patent

active

D02592797

REFERENCES:
patent: D195322 (1963-05-01), Hill
patent: D235483 (1975-06-01), Leight
patent: 2888921 (1959-06-01), Nielson
patent: 3871372 (1975-03-01), Bivins
patent: 4160449 (1979-07-01), Wade

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