Whitcomb did not call his invention zipper but everybody says that he was Father of Zipper.

惠特科姆没有把他的发明称为拉链，但每个人都说他是拉链之父。

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Necessity is the mother of invention, but patent right is the father. - Josh Billings.

需要是发明之母，但专利权是发明之父！——乔什·比林斯。

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If necessity is the mother of invention, discontent is the father of progress.

如果需要是发明之母，不满足就是进步之父。

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Greetings-card firms, such as Hallmark, blazed the way, with the invention of Father's Day, followed by a series of lesser occasions.

ECONOMIST: Trick or treat | The

The division of labour runs thus: the younger Takenaka, Kenji, chisels the cherry-wood blocks to old designs and new ones of his own invention, while his father Seihachi runs off the prints by hand, one by one.

BBC: The art of Japan

Then again, it is also said that necessity is the mother of all invention (and desperation its father?), so perhaps current-account-deficit nations will find the product innovations or the labor productivity gains that can lead to growing the market for their tradable products.

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