01658cam a2200337Ia 4500005889095MiAaHDL20250726000000.0m d cr bn ---auaua990725s1949 dcua f000 0 eng d(MiU)990058890950106381sdr-miu.990058890950106381(MiU)MIU01000000000000005889095-goog(OCoLC)41952861(MiU)Aleph005889095QPCQPCLHLWEAUSBMIUtOrBLWUSBII 28.27:7520Grove, G. W.(George Wallace),1887-http://id.loc.gov/authorities/names/n2007014074http://id.loc.gov/rwo/agents/n2007014074http://viaf.org/viaf/33903404http://isni.org/isni/0000000067654798Small portable coal-dust explosion gallery /by G.W. Grove and G.L. Freas.Washington, D.C. :U.S. Dept. of the Interior, Bureau of Mines,1949.3 p. :ill. ;26 cm.texttxtrdacontentunmediatednrdamediavolumencrdacarrierInformation circular / Bureau of Mines ;7520Mode of access: Internet.Mine dusts.http://id.loc.gov/authorities/subjects/sh85085502Coal mines and miningSafety measures.http://id.loc.gov/authorities/subjects/sh85027377Mine explosions.http://id.loc.gov/authorities/subjects/sh85085504Freas, G. L.United States.Bureau of Mines.http://id.loc.gov/authorities/names/n79063444http://id.loc.gov/rwo/agents/n790634443901507846350500588909520241217205828.020250726000000.020260312165357.02026-03-13T09:00:54Z2025-03-07T18:30:02ZSDR-MIUmiuALMAprepare.pl-004-009BKsdr-miu.990058890950106381MiUSDRGWLA005889095mdp.39015078463505MIU990058890950106381MIUGWLA20260313googlemdp.390150784635051949pdbibUS fed doc