... 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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