752 resultados para invention


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Shipping list no.: 94-0070-P.

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Vol. 1-79 list patents in numerical order, v.80-116 in classified order (selected patents only); new ser. contains extracts from selected patents in classified order.

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"The series was compiled by Alfred D. Flinn, director of Engineering foundation, and originally issued in semimonthly leaflet form [under title 'Research narratives'] for distribution to a small group."

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"Supplementary reading."--p. 52.

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