| 708 / | HD | ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING |
| 100 | DF | ELECTRICAL DIGITAL CALCULATING COMPUTER {10} |
| 200 | DF | .~ Particular function performed {26} |
| 490 | DF | .~.~ Arithmetical operation {27} |
| 620 | DF | .~.~.~ Multiplication {4} |
| 623 | ![]() | .~.~.~.~ Decimal |