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active material Alain Peyrefitte alkaline battery arrow automobile books of machines brothers C.N. Hickman carvers carving machine cells colour signals colour television colour television system construction Denis Papin Document Files Edison battery electric vehicle energy density ENHS Exhibition Fausto Veranzio feet Figure flexural rigidity force French furniture German granting privileges HC to WC heat height Henry Creighton Henry Houldsworth Houldsworth Ibid inches inventor iron James Watt Jordan's Journal Jungner Klopsteg lead battery lead-acid battery Leibniz letter London machine carving machinery manufacture March mechanical mills Nagler NTSC P.E. Klopsteg pipe plate pounds of water Pratt privileges for inventions produced proposed published pump DD reported Royal Society Savery Schallenberg SECAM SECAM system Soho Soho Foundry steam engine Storage Battery technical Thomas Thomas Savery unauthorized copying vanes Venetian Venice vessel NN Waldemar Jungner water-lifting devices Wh/kg William Creighton Wood Carving woodworking