Millionaire US patent drawings

Prev
Next
  • Details
  • Description
Date
1895
Keywords
Competition; Business; Advertising; Mechanical calculation
Object ID
500004249

The Millionaire’s mechanism contained a full multiplication table and could multiply any two numbers in one cycle. Competing calculators cycled repeatedly and were much slower. The Millionaire was expensive but attracted “power users” such as insurance companies, scientists, and engineers.