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47 (XLVII) — 1936-1937
Qualifications of Electricians, 198.
Qualifications of Officials, 164.
Quality, Coke, Determining, 357.
Quarries Report, 139.
Quartz, Micrometric Estimation, 124.
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47 (XLVII) — 1936-1937Qualifications of Electricians, 198. Qualifications of Officials, 164. Quality, Coke, Determining, 357. Quarries Report, 139. Quartz, Micrometric Estimation, 124. |
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Copyright © 1999-2024 by The Durham Mining Museum and its contributors Registered Charity No: 1110608 Page last updated: 15 Oct 2017
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