Scientific American Volume 07 Number 03 (July 1862) . on of our charge is generally left dependent upon the final result. All persons having rejected cases which they desire to have prosecuted are inv^n correspond with us on the subject, giving a brieihistory of the case, inclosing the official letters, Ac. Assignments of Patents. The assignment of Patents, and agreements between Patentees andmanufacturers, carefully prepared and placed upon the records at thePatent Office. Address MUNN A CO., at the Scientific American Pat-entAgency, No. 37 Park-row, New York. It would require many columns to
Scientific American Volume 07 Number 03 (July 1862) . on of our charge is generally left dependent upon the final result. All persons having rejected cases which they desire to have prosecuted are inv^n correspond with us on the subject, giving a brieihistory of the case, inclosing the official letters, Ac. Assignments of Patents. The assignment of Patents, and agreements between Patentees andmanufacturers, carefully prepared and placed upon the records at thePatent Office. Address MUNN A CO., at the Scientific American Pat-entAgency, No. 37 Park-row, New York. It would require many columns to detail all the ways in which theInventor or Patentee may be served at our offices. We cordially inviteall whohaveanythingto do with Patent property or inventions to callat our extensive offices, No. 37 Park-row, New York, where any ques-tions regarding the rights of Patentees, will be cheerfully answered. Communications and remittances by mail, and models by express(prepaid), should be addressed to MUNN A CO., No. 37 Park-row, NewYork. c*>c*>. D. A. C, of Colorado Territory.—It seems to us that thewalls of a gun would be weakened by making cylindrical holes inthem parallel with the bore, even though the iron around these holesshould be cooled by water circulating through them, on Rodmansplan of casting cannon. G. W. K., of Pa.—The specimen which you send us ismagnetic oxide of iron, one of the most valuable iron ores, F. W. T., of Md., and W. M. A., of Ohio.—The experi-ments, both in this country and England, have shown that thelarger iron plates are, and the more solid their supports, the betterwill they resist the force of shot. It may be, however, that somedegree of elasticity would tend to prevent the frame of the vesselfrom being crushed in. Invention, of N. Y.—Lead may be silver plated by meansof electricity, though it does not adhere very firmly. M. L. G.,of N, Y.—Your suggestion to have the turret ofthe Monitor revolve on rpllers, has already appeared i
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectcoal, booksubjectiron
