User Tools

Site Tools


Sidebar

X Patents

Fractional X Patents

Reissued X Patents

Early American Patents

Early Canadian Patents

nx-patents:nx-3856

Patent NX-3856: 1823-09-19, Machine for boring holes in chairs

X Number Date Inventor City Title
NX-3856 1823-09-19 David Johnson Richmond, OH Machine for boring holes in chairs

Comments

NX series patents are X-patents that do not have numbers. They have been arbitrarily assigned NX numbers to allow them to be entered into DATAMP.

Information Sources

(To be filled in.)

nx-patents/nx-3856.txt · Last modified: 2019/05/25 02:29 (external edit)