Bill, I assume you want the patent no’s.?
May 28, 1867. 65,114
November 26, 1867. 71,498
Dec. 10, 1867. 71885. There was no Parker related patent on December 17 that I know of.
I looked a little more and found 71,885 issued on December 17 for a spring loaded device that will hold the handle in a position. It wasn’t assigned to Parker but that doesn’t mean they didn’t use it. It functions the same as the May 28th patent.
I guess they were covering all the bases.
Mike