4. Electric heating
  5. Metal heating
  6. Of cylinders

William G. Hill

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Go-devil storage and discharge assembly

Wells – Above ground apparatus – Well caps or casing heads
Patent

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Orbital welding torch

Electric heating – Metal heating – Of cylinders
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Safety valve for controlling flow in a flow conductor

Wells – With below and above ground modification – Above ground actuating means for below ground device
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Profile ID: LFUS-PAI-P-527879

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