Finally, it was Robert Plath, who was an airline pilot, who invented a new, wheeled suitcase, which he patented in 1991.

后来一个叫罗伯特·普拉斯的飞行员，发明了一种滚轮行李箱，并且在1991年取得专利权。

耶鲁公开课 - 金融市场课程节选

It is as close as you could find in science to a solitary invention.

就像是一个科学发明的专利享有者。

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One thing about inventions is that we have something called patents.

关于发明，有个词叫做专利。

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Well, and sometimes that "O America" Meant the tinkerer, it meant the inventor, it meant the guy who invented a new kind of sewing machine and took it in for a patent.

有时候这个《啊,美国》,意味着工艺师,意味着发明者,意味着 发明新型缝纫机,并将它申请专利的人

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The idea of putting wheels on suitcases goes back only to 1972 and it was Bernard Sadow who invented-- this is amazing, right--the wheeled suitcase and he got a patent on it.

在行李箱上加轮子的想法,可以追溯到1972年2,是伯纳德？沙度发明的-,这很神奇，对吧,并且他凭此获得了专利。

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