Inside Out Library · Explore

Scientific American, Vol. 66, No. 25 (June 1892) (1892)

leaf 6

An illustration from Scientific American, Vol. 66, No. 25 (June 1892), 1892, leaf 6
y 1, ents all the time in course of examination. It is a 1891, and he entered on the performance of fundamental principle of the examiner's the duties connected with the position on work that all these, with their numerous August 1, 1891. complexities and possible constructions, r must be held to… … in use in Paris and some other cities which or subject. There are now more than two will heat great quantities of milk to a tem- WILLIAM EDGAR SIMONDS, COMMISSIONER OF PATENTS hundred classes and nearly five thousand perature of about 155° Fah. for a few min- subdivisions. Such division, involving…

Patents · Munn · Canyon · Famine · Scientific American · Stevens · Letters patent · Good roads · Patent office · Time ball · Grand Canyon · Sewing machine · Hot water · Stevens institute · Fur seals

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 66, No. 25 (June 1892)

More like this