4. Wells
  5. Pistons, fluid driven into well

Louis J. Wardlaw, III

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Downhole cementing tool assembly

Wells – Pistons – fluid driven into well
Patent

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Downhole cementing tool assembly

Wells – Pistons – fluid driven into well
Patent

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Method for testing integrity of welds at elevated temperatures

Measuring and testing – With fluid pressure – Leakage
Patent

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Method of welding using preheating insert for heavy wall pipe

Metal fusion bonding – Process – Plural heat applying
Patent

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Preheating insert for heavy wall pipe

Heating – Inserted emitter type of hollow article interior heater
Patent

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Profile ID: LFUS-PAI-P-47173

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