Pentagon Products Company
fl. 1954
Pentagon Products was founded by Arthur M. Johnson after he retired from the navy in Washington, D.C."The company was a specialty tool and machine-making company." Carlton Hinman invented his collator, but after a short attempt at selling the machine, "completely turned over the business of making and selling collators to Johnson."
Steven Escar Smith, "The Eternal Verities Verified": Charlton Hinman and the Roots of Mechanical Collation," Studies in Bibliography
Vol. 53 (2000), pp. 129-161, http://www.jstor.org/stable/40372096?seq=1#page_scan_tab_contents (accessed 04/22/2015)
Vol. 53 (2000), pp. 129-161, http://www.jstor.org/stable/40372096?seq=1#page_scan_tab_contents (accessed 04/22/2015)