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Index (23dfaade-4435-49b7-8982-4be0dfce2279)Jan 1, 1948
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Index (240e6e0a-3566-4b36-b9d6-27f0245c725b)
Jan 1, 1963
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Index (241cc381-07f7-40e1-bb3e-0ed0a6021596)
Jan 1, 1899
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Index (24ebe179-adf5-47e1-885f-8fd78e57e54e)
Jan 1, 1902
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Index (250e435c-ae3d-4b46-95ea-654c206c40a0)
Jan 1, 1936
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Index (264abdd8-6d35-406b-8b3b-2ccfc2b315d1)
Jan 1, 1935
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Index (280d5bb5-1619-4cf8-a672-58f75a9afec1)
Jan 1, 1918
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Index (282b1b73-32bd-4b69-8eef-bea8de9021fb)
Jan 1, 1949
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Index (29895952-4137-459a-a6be-4613c57ffa54)[Page Officers of the Institute 5 Minutes of. Twentieth Meeting 9 "Cutter Bits"-J. H. Emrick 12 Discussion 16 Experiments in Roof Control-D. A. Stout 18 Discussion 28 Use of Permissible Powde
Jan 1, 1925
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Index (2a35da20-d039-403e-8045-d6fe11dee533)
Jan 1, 1919
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Index (2a57c9df-5721-4773-b6a7-3bc2d4e40c73)
Jan 1, 1879
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Index (2e0ce134-97a9-4223-916f-d2ecce4add52)
Jan 1, 1881
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Index (2fbe5a2f-12f1-4453-90c7-5df8fd337267)
Jan 1, 1931
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Index (308fccf5-e9a7-4826-9631-c0e2f9e989c8)
Jan 1, 1917
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Index (319d1866-dd86-4e94-84a7-2a61a2aabf1e)
Jan 1, 1949
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Index (31b2d111-d107-419f-8255-ba5466f653b5)
Jan 1, 1937
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Index (33661513-77c8-45ea-93a6-3e4f6d6e3994)
Jan 1, 1892
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Index (3411838c-b4c3-47f7-9d8d-70d2b58e2652)
Jan 1, 1949
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Index (3453565c-b609-4df4-9db8-3e94c67f11d7)
Jan 1, 1950