Breathguard

Details Breathguard Breathguard

1998-12-01

2000-08-08

Zarfas, Louis S.

Equipment for safety, protection, and rescue

Body restraint or protective covering

Face, mouth, or ear

2902

Patent

active

D04293851

REFERENCES:
patent: D309025 (1990-07-01), Beacham
patent: D323410 (1992-01-01), Jacobson
patent: D323570 (1992-01-01), Jacobson
patent: D340548 (1993-10-01), Russell
patent: D340549 (1993-10-01), Russell
patent: D351226 (1994-10-01), Parvatharaj
patent: 3052887 (1962-09-01), Sockel et al.
patent: 5819731 (1998-10-01), Dyrud et al.

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