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Disgrifiad

This was developed between 1965 and 1970. It is a small metal canister to be attached to a mineworker's belt which contained a mouth piece and chemicals. The self rescuer enabled a person to breath properly in an atmosphere contaminated by carbon dioxide, such as that which existed after a mine explosion.

Oes gennych chi wybodaeth ychwanegol am yr eitem hon? Gadewch sylwad isod

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