books.google.co.inhttp://books.google.co.in/books/about/The_Repertory_of_patent_inventions_forme.html?id=pEcEAAAAQAAJ&q=surface&utm_source=gb-gplus-shareThe Repertory of patent inventions [formerly The Repertory of arts, manufactures and agriculture]. Vol.1-enlarged ser![The Repertory of patent inventions [formerly The Repertory of arts, manufactures and agriculture]. Vol.1-enlarged ser](http://books.google.co.in/books?id=pEcEAAAAQAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&imgtk=AFLRE70x-klaHr0pAWncLSNCxWl0U2eEK4i4OxVDXMGtcampa7LRBHDDSKKPORLOYS8OCsab3TTX2rJkMVWptwORolfb86aDmXNPc7RqYyp6fF9II8206aI "The Repertory of patent inventions [formerly The Repertory of arts, manufactures and agriculture]. Vol.1-enlarged ser")
