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US778556A
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Process of making acetyl-salicyl-phenetidin.
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US721924A
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Benzoic-acid ester of methylene diguaiacol and process of making same.
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US721923A
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Alkali caffeine methylene disalicylate.
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US716593A
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Metallic salts of methylene disalicylic acid and process of making same.
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US716592A
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Alkaline-earth salts of methylene disalicylic acid and process of making same.
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US716591A
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Alkali salts of methylene disalicylic acid and process of making same.
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US706356A
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Acet salicyl phenetidin and process of making same.
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US707278A
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Camphoric-acid ester of methylene diguaiacol and process of making same.
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US707178A
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Methylene di-aceto di-salicylic acid and process of making same.
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US706354A
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Methylene disalicylic acid and process of making same.
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US706355A
|
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Acet salicyl phenetidin and process of making same.
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US690673A
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Process of making methylene digallate of bismuth oxyiodids.
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US690672A
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Bismuth oxyiodid methylene digallate and process of making same.
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