How do you mean "latches"? No combo that I know used anything but a positive mechanical latch as opposed to a magnetic door closure to hold the door closed since it was a machine that filled, at least partially,  with water,  unlike a dryer, where magnetic closures became one of the  accepted methods of holding the door closed while allowing it to kicked open from the inside if a child became trapped inside.  The Kenmore combo lasted long enough that its last model had a locking pin in the latch that was activated by the start button. It rendered the door locked shut during the cycle.