(Top) Gas Tight Motor ol the General Electric Co. (Centre) Electric Coal Cutter of the Rotating Disc Type (Bottom) Electric Coal Cutter of the Chain Type used in Stockton Colliery
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https://paperspast.natlib.govt.nz/periodicals/P19121001.2.29.3
Bibliographic details
Progress, Volume VIII, Issue 2, 1 October 1912, Page 93
Word Count
30(Top) Gas Tight Motor ol the General Electric Co. (Centre) Electric Coal Cutter of the Rotating Disc Type (Bottom) Electric Coal Cutter of the Chain Type used in Stockton Colliery Progress, Volume VIII, Issue 2, 1 October 1912, Page 93
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