Incrustation in Boilers. itg New Bolt Heading and Screw Cutting Machine. Van Brocklin's Screw Plate. Machine for Boring Conical Holes in Hubs. New Rat Trap. Application for an Extension of Patent. Value given to Cotton in its Transforma tions. Receipt for Making M. de Baeuvilliees Wash Compound. Baltic Steamship., scientific american, 1851-07-12

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Incrustation in Boilers. itg New Bolt Heading and Screw Cutting Machine. Van Brocklin's Screw Plate. Machine for Boring Conical Holes in Hubs. New Rat Trap. Application for an Extension of Patent. Value given to Cotton in its Transforma tions. Receipt for Making M. de Baeuvilliees Wash Compound. Baltic Steamship., scientific american, 1851-07-12

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