Combined face mask and shield

Details Combined face mask and shield Combined face mask and shield

1989-08-28

1991-08-13

Chin, Kay H.

Equipment for safety, protection, and rescue

Fire extinguisher or casing therefor

Portable or hand held

D29 8

Patent

active

D03191117

REFERENCES:
patent: D311789 (1990-10-01), Villarreal et al.
patent: 2462005 (1949-02-01), Schauweker
patent: 2745401 (1956-05-01), Cupp
patent: 4077068 (1978-03-01), Anderson
patent: 4807619 (1989-02-01), Dyrud et al.

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