Ear protection

Details Ear protection Ear protection

1998-12-31

2000-11-21

Zarfas, Louis S.

Equipment for safety, protection, and rescue

Body restraint or protective covering

Face, mouth, or ear

2902

Patent

active

D04341910

REFERENCES:
patent: D298670 (1988-11-01), Palmaer
patent: D313092 (1990-12-01), Nilsson
patent: D317767 (1991-06-01), Banks
patent: D326654 (1992-06-01), Brown
patent: D377174 (1997-01-01), Runquist
patent: D411200 (1999-06-01), Almqvist
patent: D413413 (1999-08-01), Dillon et al.
patent: 4069512 (1978-01-01), Palmaer
patent: 4802243 (1989-02-01), Griffiths
patent: 5185807 (1993-02-01), Bergin et al.
patent: 5384857 (1995-01-01), Nordin et al.
Noise attenuating headsets #H3340 and #H3341 as shown in David Clark Company catalog, p. 7, Jul. 1988.

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