The Soviet camera industry didn’t copy too many american designs. Most of the time they designed cameras based on German and Japanese concepts; They were not fools: German and Japanese stuff are as good as it gets when you talk about cameras.
The Moment is a strange beast in the Soviet camera world. It is to the Polaroid 95 what the Kiev 6C was to the Pentacon Six: a model very much inspired in the original, so much that it couldn’t be sold in the West because of flagrant patent infringement. It wasn’t an exact copy and there are a few different details, but the Soviet Pola has Land genes in it. The insides are pretty much the same, as the instant photography system was copied exactly, but there are many different things.