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 4?8 INDEX. PATENTS (continued). I»age Comment on words ' new manufactures*. 178, 9 Novelty indispensable .... 179 What novelty sufficient; new effect, though old materials ibid. Addition or improvement. . . ibid. How to have patent for improvement. 180, 184, 5 Mere principle not sufficient, when. . 180 When contrary to law in general. * .181 Libefal construction. * • ibid. 2. The Inventor. Who is, within the Act. . . .182 3. Specification, What it is and ground of requiring it. . 182, S Care in drawing it .... 183 General rule as to precision, and knowledge imparted ibid. Bad if ambiguous or can mislead — instances of 184, 5 Or it be too diffuse .... ibid. Or if false in statement as to process, &c. — instances 185, 6 Must give public most beneficial and least expensive mode of using invention, when. . 186,7 No model or drawing necessary, but references when bad ; complete per tc, ,. . 187 Bad if denomination of invention in patent and spe- cification differ — and instances. . 187, 8 When inrolled. . . . .188 4. Ho^ obtained. . . .188,9 Caveat 189, 191 If vested in five persons. . . .191 5. Remedies^ and when infringed and evidence^ Sfc, 191, 2 6. Vacating the patent. . . .193 PAWN. Goods pawned, whether may be taken under extent, &c. 285, 6 PEACE. (See War and Peace.). '. . . 43, &c. PEERAGE AND PEERS. The King only fountain of, and why. . 107, 8