ENGLISH PATENTS ISSUED TO AMERICANS.

From February 18 to February 21, inclusive.

Bed bottoms, etc.--C. D. Flynt, Brooklyn, N. Y.

Berth.--D. Huston, Boston, Mass.

Lead smelting furnace.--G. T. Lewis, Philadelphia, Pa.

Locks.--A. P. Thomas _et al._, Baltimore, Md.

Railway joint.--P. T. Madison, Indianapolis, Ind.

Spikes for railroads.--R. Bocklen, New York city.

Ventilating buildings.--F. S. Norton, New York city.

* * * * *

Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 77 / 162 题