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US2525218A
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Bubble cap assembly
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Manway clamp
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Refining vessel
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Tray for use in refining towers
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Bubble cap assembly
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Bubble cap riser
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Closure clamp
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Wedge actuated c clamp
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Bubble cap mounting
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Bubble tray downcomer
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Riser for bubble cap trays
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Tray for use in refining towers
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Tray for use in refining towers
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CA468944A
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Risers for bubble-cap trays
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CA469365A
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Bubble tray downcomers
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CA457069A
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Bubble tower
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Trays for use in refining towers
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CA468348A
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Trays for use in refining towers
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CA479917A
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Tray constructions for use in refining vessels
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