4. Refrigeration
  5. Storage of solidified or liquified gas

Pittsburgh-Des Moines Steel Company

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Emergency roof drain for floating roof storage tanks

Receptacles – Closures – Floating closure
Patent

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Floating roof drainage system

Receptacles – Closures – Floating closure
Patent

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Floating roof seal

Receptacles – Closures – Floating closure
Patent

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Impact resistant tank for cryogenic fluids

Refrigeration – Storage of solidified or liquified gas
Patent

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Insulation for double wall tanks

Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent

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