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Number of Holes and the Charge per Round in Stone Drifts (booklet)
National Coal Board Production Department
(Publisher)
Full title - Estimation of the Number of Holes and the Charge per Round in Stone Drifts Employing a Wedge Cut. Information Bulletin No. 56/171. 5 pages.
Collection Area
Industry
Item Number
2001.1/1038
Creation/Production
Acquisition
donation, 1/2/2001
Measurements
Length
(mm): 330
Width
(mm): 202
Material
Card
Paper
Metal
Location
In store
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