首页 / 官方藏书 / Scientific American, Volume 17, No. 26 December 28, 1867 / A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. / USEFUL COMPOUNDS ARE PATENTABLE--THE APPLICANT NOT REQUIRED TO PROVE THE FUNCTION OF EACH INGREDIENT.

USEFUL COMPOUNDS ARE PATENTABLE--THE APPLICANT NOT REQUIRED TO PROVE THE FUNCTION OF EACH INGREDIENT.

Scientific American, Volume 17, No. 26 December 28, 1867 / A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · Various · 第 6 / 8 章