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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • Inside Derrick Platforms. (a) An inside derrick platform shall be provided in the derrick tower at each elevation where an employee is normally required to handle pipe, sucker rods or other equipment racked in the derrick tower. (b) The working edge of inside derrick platforms shall be placed with sufficient clearance for safe passage of the traveling block and to permit the employee, if working f
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