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Article 42. Catheads for Well-Drilling and Well-Servicing Machinery | Midpage
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California Code of Regulations
Title 8
Division 1. Department of Industrial Relations
Chapter 4. Division of Industrial Safety
Subchapter 14. Petroleum Safety Orders—Drilling and Production
Article 42. Catheads for Well-Drilling and Well-Servicing Machinery
Article 42. Catheads for Well-Drilling and Well-Servicing Machinery
State of California
6642
Catheads.