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Jan 6, 2018 - Burroughs Class 2 Duplex Calculating Machine, c. 1915 No. 17-74972, 220 V electric motor, on tubular frame, beveled gla
William Burroughs – Computer Timeline
Key Driven and Electric Calculators - Burroughs Adding Machine Company
William Seward Burroughs I - Wikipedia
ORIGINAL ILLUSTRATED COVER: 1923. Our AD's and COVER'S are.
1923 BURROUGHS DUPLEX ADD MACHINE CALCULATOR OFFICE BUSINESS DETROIT AD [[SKU]
Burroughs Machine
Burroughs
Burroughs - Jaap's Mechanical Calculators Page
John Wolff's Web Museum - Burroughs
Burroughs adding machine hi-res stock photography and images - Alamy
John Wolff's Web Museum - Burroughs
Adding-Listing Machines
John Wolff's Web Museum - Burroughs
Key Driven and Electric Calculators - Burroughs Adding Machine Company
Key Driven and Electric Calculators - Burroughs Adding Machine Company
Origin of Modern Calculating Machines, by J. A. V. Turck—A Project