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The number system came later. X series gives the earliest patents, including the first issued: X1 http://bit.ly/8X7Ydw http://bit.ly/8X7Ydw
by riemannzeta 16y ago
The number system came later. X series gives the earliest patents, including the first issued: X1
http://bit.ly/8X7Ydw http://bit.ly/8X7Ydw
- Rexxar 16y agoPlease don't use URL shorteners.
- riemannzeta 16y agoSorry. Here's the link: http://www.google.com/patents?id=nrxzAAAAEBAJ http://www.google.com/patents?id=nrxzAAAAEBAJ That's General Washington's signature in the middle, and Edmund Randolph's (first Attorney General) on the bottom. The cabinet was the PTO in 1790.