01506nam 2200421 a 450 991070055570332120110802163411.0(CKB)5470000002410439(OCoLC)744473293(EXLCZ)99547000000241043920110802d2011 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierRe-issue of P09-26[electronic resource] potential hazard to roof bolting machine operators due to inadvertent control actuation[Arlington, Va.] :[U.S. Dept. of Labor, Mine Safety and Health Administration],[2011]1 online resource (3 pages)Program information bulletin ;no. P11-20Title from title screen (viewed on August 1, 2011)."Issue date 4/01/2011."Re-issue of P09-26 Mine safetyUnited StatesCoal mines and miningUnited StatesMine roof boltingEquipment and suppliesMine roof boltingAccidentsUnited StatesMine safetyCoal mines and miningMine roof boltingEquipment and supplies.Mine roof boltingAccidentsUnited States.Mine Safety and Health Administration.GPOGPOBOOK9910700555703321Re-issue of P09-263549855UNINA