Kaats-Kill Patent account book, 508, manuscript box: 24 - folder 1. Division of Rare and Manuscript Collections.
Kaats-Kill Patent account book, 508, manuscript box: 24 - folder 1. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/resources/4345 Accessed November 28, 2024.
