Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 594
s for pat-ents, shall be traced with ink and according tothe metric system. In place of these designs,inventors have generally accompanied their appli-cations with photographs, or designs produced hyphotographic means. 1 hese photographs or de-signs are liable to become indistinct with age,and the…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
