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AUTHORS (1-3 共 3)
Treaftis, Harry N.,
1 Laboratory evaluation of the Leitz Tyndallometer TM-Digital Tomb, Thomas F. [Arlington, Va.] : U.S. Dept. of the Interior, Mining Enforcement and Safety Administration, 1977. 1977 评级: 复本
2 Review of published experimental calibrations performed on the 10 millimeter nylon cyclone Tomb, Thomas F. [Washington] : U.S. Dept. of the Interior, Mining Enforcement and Safety Administration, 1976. 1976 评级: 复本
3 Standard calibration and maintenance procedures for wet test meters and coal mine respirable dust sa Tomb, Thomas F. [Arlington, Va.] : Dept. of the Interior, Mining Enforcement and Safety Administration, 1978. 1978 评级: 复本
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