Context

Context of Report of jury trial in causa Alexander M'Dougall, manufacturing chemist, Manchester, versus Robert Girdwood, wool broker, Tanfield, Edinburgh : for infringement of patent for 'Improvements in materials for destroying vermin on sheep and other animals and for protecting them therefrom' : tried at Edinburgh before the lord president and a jury, on the 8th, 9th and 10th April 1867
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