4. Receptacles
  5. Closures
  6. Having means for securing or retaining closure in its closed...

Douglas J. Platts

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Closure for pipes or pressure vessels

Receptacles – Closures – Having means for securing or retaining closure in its closed...
Patent

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Closure for pipes or pressure vessels and a seal therefor

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Pipeline spheres

Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent

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Profile ID: LFUS-PAI-P-445048

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