問題詳情
16 Which of the following cannot be patentable as inventions under section 101 of the U.S. Patent Act?
(A)New and useful machines Formulas
(B)
(C)New and useful manufactures New and useful compositions of matter
(D)
參考答案
答案：B
難度：非常困難0
統計：A(1),B(0),C(0),D(0),E(0)