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Temporary hearing loss after loud noise exposure. If such exposure is long enough, this temporary threshold shift may become permanent.
Temporary hearing loss after loud noise exposure. If such exposure is long enough, this temporary threshold shift may become permanent.
Banded ear plugs
Banded ear plugs
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A woman examining her work on a lathe at a factory in Britain during World War II, her eyes unprotected, a practice that today would not be permitted
A woman examining her work on a lathe at a factory in Britain during World War II, her eyes unprotected, a practice that today would not be permitted
Bernardino Ramazzini
Bernardino Ramazzini
Sir Robert Peel
Sir Robert Peel
Harry McShane, age 16, 1908. Pulled into machinery in a factory in Cincinnati and had his arm ripped off and his leg broken without any compensation.
Harry McShane, age 16, 1908. Pulled into machinery in a factory in Cincinnati and had his arm ripped off and his leg broken without any compensation.