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Its purpose is to save a character that would otherwise be used by the sign digit. [2] The code is derived from the Hollerith Punched Card Code, where both a digit and a sign can be entered in the same card column. It is called an overpunch because the digit in that column has a 12-punch or an 11-punch above it to indicate the sign.
NNN/N represents the 3-digit manufacturer code and the number of the production line (e.g., 1023 would be Line 3 at Pine Bluff Arsenal (manufacturer 102)). Y/M indicates the last digit of the two-digit financial year (which runs July to June) and the one-digit financial bi-monthly code (e.g, 65 ; the "6" would be 1966 and the "5" would be March ...
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
General Post Office (disambiguation) Group purchasing organization; Gun Position Officer, usually a lieutenant, responsible for the technical control of an artillery battery in the United Kingdom and Commonwealth forces
A Regular Production Option (RPO) is a 3-digit standardized code used by General Motors to designate vehicle options & modifications. RPO codes designate how a vehicle is built, and they've been used on dealership order forms and in assembly plants since at least the 1950s (see Corvette C1).
Provides 2-digit 5-bit mission code (cockpit selectable) [1] 2: Provides 4-digit octal unit code (set on ground for fighters, can be changed in flight by transport aircraft) [1] 3: A: Provides a 4-digit octal identification code for the aircraft, set in the cockpit but assigned by the air traffic controller. Mode 3/A is often combined with Mode ...
The first four code symbols were made up of a two-digit code for the career field, a letter code for the field specialty, and a number code (1 to 5) indicating level of instruction in their field specialty. The fifth code symbol was an SQI code letter indicating training in a special skill (the letter "O" indicating that the soldier had no SQI).
2: Utility truck ¾ ton to 1 ton (incl. Jeep) (until 1942) Light truck up to 1 ton (incl. Jeep) (from 1943) hood both sides, tailgate † 20: Reconnaissance trucks and Buses: hood both sides, tailgate 3: Light truck 1¼ to 2 ton (until 1942) Medium trucks up to 1½ tons (from 1943) hood both sides, tailgate † 30: Tanks and some special vehicles