Operating Valve of Steam Engine.—Samuel R. Wilmot, Bridgeport, Conn. Letters Patent No. 16,668, dated February 17, 1857.
Hinges.—John David Browne, Cincinnati, Ohio. Letters Patent No. 16,678, dated February 24, 1857.
Keeper for Right and Left Hand Door Locks.—Calvin Adams, Pittsburgh, Pa. Letters Patent No. 16,676, dated February 24, 1857.
Solar Camera.—David A. Woodward, Baltimore, Md. Letters Patent No. 16,700, dated February 24, 1857; reissue No. 2,311, dated July 10, 1866.
Cast Seamless Thimble Skeins for Wagons.—John Benedict, Kenosha, Wis., administrator of Andrew Leonard, deceased. Letters Patent No. 16,688, dated February 24, 1857; reissue No. 575, dated July 27, 1858; reissue No. 1,229, dated October 8, 1861.
Mode of Casting Seamless Skeins for Wagons.—John Benedict, Kenosha, Wis., administrator of Andrew Leonard, deceased. Letters Patent No. 16,688, dated February 24, 1857; reissue No. 575, dated July 27, 1858; reissue No. 1,228, dated October 8, 1861.
Breech-loading Firearms.—William Cleveland Hicks, Summit, N. J. Letters Patent No. 16,797, dated March 10, 1857; reissue No. 1,952, dated May 9, 1865; reissue No. 3,798, dated January 18, 1870; reissue No. 3,860, dated March 1, 1870.
Seeding Machine.—Lewis B. Myers and Henry A. Myers, Elmore, Ohio. Letters Patent No. 16,772, dated March 3, 1857.