Heat-recuperating mask

Equipment for safety – protection – and rescue – Fire extinguisher or casing therefor – Portable or hand held

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D24164

Patent

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D03446085

REFERENCES:
patent: Re24549 (1958-10-01), Haliczer
patent: D195612 (1963-07-01), Lioia
patent: 2915060 (1959-12-01), Miner
patent: 2964038 (1960-12-01), Silverman
patent: 4245631 (1981-01-01), Wilkinson et al.
patent: 4248220 (1981-02-01), White
patent: 4793343 (1988-12-01), Cummins, Jr. et al.
patent: 4905686 (1990-03-01), Adams

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