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Patent Drawing of Engine - 001 Sundback zipper 1917 patent (cropped) Public domain  image

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Patent Drawing of Engine - 001 Sundback zipper 1917 patent (cropped) Public domain image

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Summary

1917 patent of the "separable fastener" (zipper) by Gideon Sundbäck.

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Date

20/03/1917
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Source

USPTO
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public domain

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