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Ram construction for oil well blow out preventer apparatus

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram type blowout preventer

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Reissue Patent

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Ram type blowout preventer

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram type blowout preventer having improved ram front packing

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram type blowout preventer having improved ram front packings

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram type blowout preventor

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram-type blowout preventer

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram-type blowout preventer

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram-type blowout preventer

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram-type blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Ram-type blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Ram-type blowout preventer and packer therefor

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Ram-type blowout preventer and packer therefor

Valves and valve actuation – Blow-out preventers
Patent

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Ramped stem extender

Valves and valve actuation – With friction detent
Patent

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Range burner control valve shutter

Valves and valve actuation – With selective flow regulation – Rotary
Reexamination Certificate

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Rapid connection coupling

Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Reexamination Certificate

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Rapid connection coupling

Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Patent

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Rapid pulse delivery diaphragm valve

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent

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Rapid shutoff extraction check valve

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent

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Rate of flow control valve

Valves and valve actuation – With selective flow regulation – Rotary
Patent

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