It is a construction of the laminator for printed boards. The device was made of another laminator and improved.
Pictures below show few boards made with help of this device:
Laminated PCBs are multi-layer boards so I think the title of the topic is misleading. I think you should emphasize that it is actually to squeeze toner on to plain board to make an etch resist pattern.
OK seems that OP should be more specific for some folks that are thinking LITERALLY and are assuming that the laminators are used for laminating multilayer boards (in fact they are not, presses are used for laminating multilayer boards).