... Reference Index Of Patents Of Invention, From March 2, 1617 (14 James I.) To October 1, 1852 (16 Victoriae).
Pointing Out The Office In Which Each Enrolled Specification Of A Patent May Be Consulted, And The Books Containing Notices Of Specifications
AvBennet Woodcroft,Great Britain Patent Office
Häftad, Engelska, 2022
447 kr
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