A NEW SIZE FOR PROSPECTING AND LABORATORY USE.

[Symbol: Right index] ALL STONE CRUSHERS not made or licensed by us,

containing vibratory convergent jaws actuated by a revolving shaft and

fly-wheel, are infringements on our patent, and makers and users of

such will be held accountable. Address

Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 115 / 162 题