J. T. NOYE & SON, BUFFALO, N. Y.

* * * * *

HOW TO SELL PATENTS.--This little book fully explains how all patents

can be sold for good prices. Price 25 cents. L. D. SNOOK, Barrington,

Yates Co., N. Y.

* * * * *

Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 134 / 162 题