1899 Macey Card Index
1899 Macey Filing Cabinet
1899 Security Filing Cabinet
1899 Shaw Walker Card System
1899 Smith Tabulating and Billing Machine
1899 Smith's Index Tabs
1900 Burroughs Registering Accountant
1900 Neostyle Duplicating Device
1900 Whiting Cash Registers
1901 Areandbe Expense Books
1901 Automatic Multiplier
1901 Baker Vawter Business Systems
1901 Benedict's Copying Book
1901 Burroughs Registering Accountant
1901 Fisher Billing Machine
1901 Ledgerette
1901 Lightning Calculator