4. Wells
  5. Valves, closures or changeable restrictors
  6. Fluid operated

Mason M. Campbell

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Apparatus to aid in applying an article of jewelry around the wr

Buckles – buttons – clasps – etc. – Article holder attachable to apparel or body – Article held by clip
Patent

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Arrangement for controlling communication between a tubular memb

Fluid handling – Destructible or deformable element controlled – Destructible element
Patent

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Method and apparatus for gravel packing a well through a tubing

Wells – Processes – Graveling or filter forming
Patent

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Microwave popcorn popper

Electric heating – Metal heating – Of cylinders
Patent

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Sand screen completion

Wells – Screen with valve – closure – changeable restrictor or portion...
Patent

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Profile ID: LFUS-PAI-P-994147

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