Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Transvaal Chamber of Mines. Prevention of Accidents Committee', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1
    Safety code issued by the Prevention of Accidents Committee of the Transvaal Chamber of Mines.
    Llyfr
    Cyhoeddwyd 1953
    “...Transvaal Chamber of Mines. Prevention of Accidents Committee...”
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
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