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Q.

Which is the first product to be patented?

Tags: electronics, beauty & fashion, advertising & marketing
Asked by dharamender nebhnani, 30 May '12 11:05 pm
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Answers (2)

1.

Epsom salt
Answered by rajan, 31 May '12 07:13 am

 
  
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2.

In 1449 King Henry VI granted the first product with the license of 20 years to John of Utyam for making the first colored glasses. In USA several states have enacted their own laws and first patent in 1790 was given to Samuel Hopkins of Vermont for a potash production technique.
Answered by Prince Deva, 30 May '12 11:10 pm

 
  
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