Electric ambient air breathing pump

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

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Details

D15 7, D2401, D1502

Patent

active

D02650053

REFERENCES:
patent: D194570 (1963-02-01), Johnson
patent: D222687 (1971-11-01), Adams
patent: D225692 (1972-12-01), Bird et al.
patent: D246976 (1978-01-01), Bell et al.
patent: 3379194 (1968-04-01), Ziermann
patent: 3530872 (1970-09-01), Arp
patent: 3805780 (1974-04-01), Cramer et al.
patent: 4224939 (1980-09-01), Lang

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