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US2780482A
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Expansion joint for pipe lines and the like
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US2753893A
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Dip tube for tanks and the like
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US2598345A
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System for concentrating liquids
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US2536348A
|
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Mounting for rotary agitators
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US2479997A
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Valved tank
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US2425918A
|
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Agitator nozzle
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US2401606A
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Method of manufacturing tanks
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US2373046A
|
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Pressure relief valve
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US2391876A
|
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Material treating tank
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US2300058A
|
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Apparatus for exchanging heat
|
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US2270469A
|
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Pressure relief valve
|
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US2270468A
|
|
Pressure relief valve
|
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US2270333A
|
|
Pressure relief valve
|
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US2270332A
|
|
Pressure relife valve
|
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US2230638A
|
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Temperature changing system for tanks
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