4. Pipe joints or couplings
  5. With assembly means or feature
  6. Particular tool-engaging means or with tool

Anton J. Dach, Jr.

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Independent wellhead drilling adapter

Wells – Processes – Assembling well part
Reexamination Certificate

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Interference-fit seal for gate valves

Valves and valve actuation – Reciprocating valve – Gate
Reexamination Certificate

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System, method and apparatus for split gate valve with...

Valves and valve actuation – With means to increase head and seat contact pressure – Gate valve
Reexamination Certificate

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Torque nut for setting a graphite seal

Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent

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Profile ID: LFUS-PAI-P-1591840

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