Patents for inventions : Abridgments of specifications relating to tea, coffee, chicory, chocolate, cocoa, &c. (comprising their manufacture, but not the preparation of drinks therefrom).

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Patents for inventions : Abridgments of specifications relating to tea, coffee, chicory, chocolate, cocoa, &c. (comprising their manufacture, but not the preparation of drinks therefrom). Public Domain Mark. Source: Wellcome Collection.

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