Search

Search Constraints

Start Over You searched for: Subject Patents Remove constraint Subject: Patents Place Philadelphia (Pa.) Remove constraint Place: Philadelphia (Pa.) Creator Franklin Institute (Philadelphia, Pa.) Remove constraint Creator: Franklin Institute (Philadelphia, Pa.) Language English Remove constraint Language: English

Search Results

Main content

The Historical and Interpretive Collections of The Franklin Institute subject files, 1792-1943 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

Main content

The Historical and Interpretive Collections of The Franklin Institute collection of oversized papers, 1790-1984 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]