The funny thing is that CDMA was a Russian invention, and was first implemented in a mobile phone in 1957.
"In the Soviet Union (USSR), the first work devoted to this subject was published in 1935 by Dmitry Ageev... The technology of CDMA was used in 1957, when the young military radio engineer Leonid Kupriyanovich in Moscow made an experimental model of a wearable automatic mobile phone, called LK-1 by him, with a base station."
"In the Soviet Union (USSR), the first work devoted to this subject was published in 1935 by Dmitry Ageev... The technology of CDMA was used in 1957, when the young military radio engineer Leonid Kupriyanovich in Moscow made an experimental model of a wearable automatic mobile phone, called LK-1 by him, with a base station."
https://en.m.wikipedia.org/wiki/Cdma