US1782713A
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Vulcanization of rubber
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US1673801A
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Vulcanization accelerator
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US1523755A
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Production of vulcanized-rubber products
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US1593017A
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Vulcanization of rubber
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US963275A
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Manufacture of alcohol and by-products and apparatus therefor.
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CA128471A
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Art of purifying rubber
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US957495A
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Process of producing rubber.
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US1051987A
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Process of treating rubber and product of the same.
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US896435A
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Process of distillation.
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US890217A
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Art of purifying rubber.
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CA110045A
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Process of making acetates
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US845616A
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Solvent and process of preparing same.
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US874391A
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Process of making steel.
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US824906A
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Process of making wood-alcohol.
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US939980A
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Process of making acetates.
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US835501A
|
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Process of making acetates.
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US896434A
|
|
Distillation apparatus.
|
US893784A
|
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Process of preparing wood-alcohol and chloroform.
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US648389A
|
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Process of making acetone.
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US895003A
|
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Process of purifying turpentine.
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