Source: Official Retrospective Exhibition of the Development of Harvesting Machinery for the Paris Exposition of 1900.
Patent
J. L. Clark Celebrates 100 Years – 2004
Source: Rockford Register Star Nov. 8, 2004
Rockford Machine Tool Co. – interior photo – 1962
Source: Rockford Morning Star and Rockford Register-Republic’s “Century Plus 10” Special Edition, March 1962
Photo: production setup of 20 Hy-draulic Planers, equipped with Rockford Hy-Draulic Kopy-Cats for form planning airplane propeller blades
John S. Barnes Corp. – 1962 article
Source: Rockford Morning Star and Rockford Register-Republic “Century Plus 10” Special Edition, March 1962
W.F. and John Barnes – 1962 article “Barnes’ Talent Founded Firm”
Source: Rockford Morning Star and Rockford Register-Republic “Century Plus 10” Special Edition, March 1962
[National] “Lock Plant Here Largest in World” – 1962
Source: Rockford Morning Star- Rockford Register-Republic Special Edition “Century Plus 10” March 1962
John Nelson, Knitting Machine Patent (1 of several) – 1879
Source: www.uspto.gov
George Chapman, inventor/Patent – 1895, Mowing Machine
Source: www.uspto.gov
John H. Manny, death, accomplishments – 1856, inventor of Reaper and Mower
Source: Rockford Weekly Register-Gazette, February 2, 1856
Mattison Machine Works – 1962 article
