Formerly |
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Company type | Subsidiary |
Industry | Oilfield equipment |
Founded | 1922Brea, California | in
Founder | William D. Shaffer |
Parent |
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Shaffer, a subsidiary of NOV Inc., is a manufacturer and distributor of pressure control devices for the petroleum industry. The company's products include blowout preventers, control systems, riser string packages, choke valves, riser tensioners, and drill string compensators.