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Line 202: :: The X-codes are better documented in US patent 2963137 "Controls for a typewriter and associated apparatus". The patent assignee is Giddings & Lewis, but the four inventors (McDonough, Susskind, Grossimon, and Lee) were all MIT staff attached to the Servo Lab. Giddings & Lewis poached the entire numerical control staff (with the exception of Susskind) to form Concord Controls at the beginning of 1956. :: The Bendix R-codes were encoded on punch tape in their own special block, so there was never an appearance of an alphanumeric code, such as "R00". The Giddings & Lewis X-Code, however, appeared exactly as G-Code would later be used. There is no relationship between the operational code numbers between X-Code and the later G-code. It's unknown if the same can be said for the auxiliary functions, as they are deliberately not documented in the 1957 paper, nor the 1956 patent - other than the Program End function which was encoded as "X00", the same as the later "M00". ::[[User:Alvonruff\|Alvonruff]] ([[User talk:Alvonruff\|talk]]) 15:17, 16 September 2021 (UTC) ==FANUC sources?==

Talk:G-code: Difference between revisions