This Friden Calculator (Jul, 1954)
This Friden Calculator
Extracts Square Root Automatically with a touch of one key (first time on any desk calculator) Also provides all basic features which enable the fully automatic Friden Calculator—The Thinking Machine of American Business—to perform… more kinds of figure-work without operator decisions than any other calculating machine ever developed Send today for this Information Sheet describing features and abilities of the fully automatic Friden Square Root Calculator in detail.
Write FRIDEN CALCULATING MACHINE CO., INC., Dept. SA-3, San Leandro, California.
Friden BUILDS CALCULATORS IN A WIDE PRICE RANGE, IN EVERY SIZE, FOR EVERY FIGURING NEED
Friden sales, instruction and service available throughout the U.S. and the world,