They supported the shah
shah of iran visited of america in 1950
The US backed the Shah of Iran who was an authoritarian monarch.
Not in so many words. Prior to rule by the Ayatollahs Iran was called Persia and was ruled by the Shah. Up until he was unseated by the Ayatollahs the Shah was a great "friend" of the US. All three, Persia/Iran, the US, and the Shah did quite well out of it.
Shah Mohammed Reza Pahlavi
YES.
The cast of The Shah of Iran - 2015 includes: Ben Kingsley as The Shah
The United States led a coup d'état in Iran in 1953 which ousted President Mossadegh and replaced him with the Shah of Iran.
they believed shah was enemy of Islam and was puppet of US in Iran and tried to destroy Islam step by step.
Mohammad Reza Pahlavi, the last Shah of Iran
Iran demanded that the US return the former Shah of Iran (Mohammed Reza Pahlavi) to Iran for a trial (which would undoubtedly result in his execution) and unfreeze Iranian government funds in Swiss Banks in exchange for the US hostages. Iran eventually got the money, but not the Shah, who died in exile in Egypt.
US has not sold arm directly to Iran since the revolution in 1979. All the American arms that Iran has right now have remained from the old days (Shah's time) or Iran has bought them from the black market.