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老兄，概念乱套了：万有引力只是发现，是自然已存在的东东又不是实物发明。专利其实是把双刃剑，既保护发明创造但也会形成垄断可能阻碍创新，黑炸药专利除了配方还有工艺，黄炸药与其区别在于配方，但工艺得交版权费吧？

see1see(Isee)

其实，黑炸药真有专利保护的话，黄炸药也有受阻而没有发明出来的可能哦....

(#11912775@0)
Last Updated: 2019-2-3
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