C. N. Johnson
Rockford Inventor: Clifford N. Johnson’s Patents
Rockford Inventor: Clifford N. Johnson with Johnson Pen Company
Source: Haugen, Doug. “The Johnson Pen Company.” The Pennant, Fall 2021, p. 28-35.
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Article is posted with the author, Doug Haugen’s, permission on October 28, 2022 via email.