Interestingly it took decades after that to roll out most of the things you listed. Meanwhile newer inventions like the mobile phone were rolled out faster and more globally, even to places where the inventions you listed still haven't reached.
1st mobile phones were demonstrated in the early 70s (more than 40years back)... Mobile phone, itself, is no real invocation - the radio did exist, the telephones did exist.
Current mobile phones are just computers with radio; greatly benefiting from the lithography process that's the basis for the Moore's law. Of course, lithography process have seen a lot improvements to its current 10nm state but all those are mostly incremental small steps.
The tough part is the cellular structure to the frequency usage and handing live calls smoothly from one cell to the next.