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US2919287A
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Process for the conversion of normally water-insoluble organic substances into water-soluble form and substances produced by said process
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GB808272A
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Preparation of aqueous solutions of normally water-insoluble organic substances
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GB506271A
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Process for the production of silverless photographic picture and sound records
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GB139419A
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A process for the preparation of gallic acid
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GB140694A
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A process for the preparation of pyrogallic acid
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US1100730A
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Process for the preparation of gallic acid.
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US979080A
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Process of preparing tanniferous material for extraction.
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GB190917036A
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An Improved Process for Producing Cellulose Formate.
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GB190916440A
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An Improved Process for the Manufacture of Tannin Extracts.
|
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GB190728723A
|
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Process for Producing Formins.
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US879553A
|
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Process of mordanting wool.
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