Calculator

Patent for a calculator which consists of semicircular device with movable pointers and number indexes printed on it that allows the pointers to be moved to different numbers to produce the answer to a math problem such as calculating the cost of goods sold by the pound in a store.

Bibliographic Details
Main Author: Goss, George Wilson
Other Authors: Stewart, E. K., Chapman, F. T., Acrey, Charles M., Andrew B. Graham Co.
Format: Patent
Language:English
Published: United States. Patent Office. 1909
Subjects:
Inventions
Science and Technology
Business
Economics and Finance - Stores
mathematics
calculators
calculations
calculating devices
Reeves
The Pointers
Online Access:https://texashistory.unt.edu/ark:/67531/metapth512717/
Description
Summary:Patent for a calculator which consists of semicircular device with movable pointers and number indexes printed on it that allows the pointers to be moved to different numbers to produce the answer to a math problem such as calculating the cost of goods sold by the pound in a store.

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