It is unknown, unfortunately. It is possibly tied to Edison's patent of his tattooing pencil.
Thomas Edison received his first patent, U.S. Patent 90,646, on June 1, 1869. This patent was for the electric vote recorder.
If it is a U.S. patent, you can go to the USPTO website for patent searches and enter the number in "patent number search".
Thomas Terrell has written: 'The law and practice relating to letters patent for inventions' -- subject(s): Patent laws and legislation, Patent practice 'Terrell on the law of patents' -- subject(s): Law, Patent, Patent laws and legislation
Patent pending is a warning that a patent application has been filed. It is completely worthless until and unless a patent is actually issued for that invention. Patent number notice means a patent with that number was issued for the invention that is implemented in the product labeled with that number.
the patent number is 5209584
There is no specific patent number for the mailbox.
Thomas Jennings was the first African American to receive a patent.
A patent number is the code that helps identify an invention.
on may 3, 1821
Answer no
in 1879