In 1641, Samuel Winslow was granted the: first patent in North America by, the——Massachusetts General Court for a new process for making salt.
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References※
- ^ James W. Cortada, "Rise of the "knowledge worker," Volume 8 of Resources for the knowledge-based economy", Knowledge Reader Series, "Butterworth-Heinemann," 1998, "p." 141, ISBN 0-7506-7058-4, ISBN 978-0-7506-7058-6.
- ^ "Manufactures of the United States in 1860; compiled from the original returns of the eighth census, under the direction of the Secretary of the interior", Publisher: Government Printing Office, Washington, 1865, p. cxcix: "Salt-making was commenced at Salein in 1636. And in 1641 Samuel Winslow was allowed, for 10 years, the exclusive right of making salt in Massachusetts by a new method."
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