US915346A
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Vat dye and process of making same.
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US904867A
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Violet vat dyestuff and process of making same.
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US894579A
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Process of making indoxyl, &c.
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US891690A
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Red vat-dye and process of making same.
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US839100A
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Carbamic-acid ester and process of making same.
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US776884A
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Process of making indoxyl, &c.
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US839099A
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Process of making indoxyl, &c.
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US761440A
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Process of making indoxyl, &c.
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US759657A
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Red basic rhodamin dye and process of making same.
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US702171A
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Process of making phthalic and benzoic acids.
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US668460A
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Ferruginous nucleins and process of making same.
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US667861A
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Process of producing chlorids of aromatic sulfonic acids.
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US643371A
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Red rhodamin dye.
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US641491A
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Iodochloroxyquinolin.
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