1. 44w
2. Smith-Corona Portable Electric
3. 1960
1. 45w
2. Facit Model 1820
3. 1971
1. 42w
2. Olympia CE-R12
3. 1983
1. 115v 0.5A 60hz
2. IBM Model C
3. 1959
1. 115v 1.3A 60hz
2. IBM Model 72 Selectric
3. 1970
You will need to be careful when using the voltage and amp ratings taken off typewriter name plates as they do not match the power rating. For example, the Facit I listed above has a 45w rating on the machine, but also states that it's a 115v, 0.8A machine. This means the machine, in theory, should draw 92w and not 45w. The only explanation that I can think of to explain this is that the amp rating shown on the name plate is a peak value that accounts for the motor's inrush current.
I have a number of other electric machines - as above, none are electronic typewriters - but it might be a (long) while before I can get the information that you're after from them.
I am curious as to why this information is of any importance given how few of these machines must still be in regular use.