Patents for inventions.
Abridgments of specifications.
Class 100,
printing, letter press & lithographic.

Description

Viewability

Item Link Original Source
Full view   v.1 1877-1888 University of Michigan
Full view   v.2 1889-1896 University of Michigan
Full view   v.3 1897-1900 University of Michigan
Full view   v.4 1901-1904 University of Michigan
Full view   v.5 1905-1908 University of Michigan