mprovement was patented July 12,1870, and is owned the part, C, the cover, H, is placed upon the seat which com - ly extending. In this city and in Brooklyn the area of wood by the Ballard Pavement Company in connection with their pletely closes communication with the interior, and the ap- road… … IMPROVED BALLARD PAVEMENT. wedge-shaped or key filling, etc. Patents have been applied the inventor is confident reaches the highest point of excel- The fecal matters are covered with earth by turning the for through the Scientific American Patent Agency, in En- lence at a much lower price than any…
Patents · Iron · Color · Consists · Manufacture · Scientific American · Wrought iron · Natural science · Patent office · Blue color · Gun cotton · Best design · City hall · Jethro wood · Fire alarm
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