OCR'd Text:
HEALTH AND SAFETY EXECUTIVE HD 7269 M6.15 Final report of the National Committee on Steep Seam Working in British Coal Mines. HMSO, 1978. COht . SALE PY TN MINES MINES AND QUARRIES SAFET AND HEALTH
Return To SearchHEALTH AND SAFETY EXECUTIVE HD 7269 M6.15 Final report of the National Committee on Steep Seam Working in British Coal Mines. HMSO, 1978. COht . SALE PY TN MINES MINES AND QUARRIES SAFET AND HEALTH
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