Dibble & McCord
This was a very early manufacturer of vises, approximately the 1830s.
E. D. McCord - Washington County, NY - 1831 (See image 1 below for 5/25/1831 newspaper article) - Patent listed in DATAMP under X6144 - Mr. McCord teamed up with M. C. Dibble of Detroit to manufacture vises at Sandy Hill, NY. The concern may have been called Dibble & McCord. At some point between 1831 and 1842 (likely closer to the '42 date), Mr. McCord passed away and Mr. Dibble filed for bankruptcy on July 13, 1842.
5/25/1831 newspaper article