Window Lock

A home owner from Massachusetts says:
Have brocken window locks that need to be replaced, please see attached picture. I've also pulled various numbers to help with identification if helpful: P.L. #352-006 SERIES: 3150 casement.

I also need help of how do you take apart from the window. Thank you very much, if possible please reply ASAP, as we are ready to head into the cold winter months.
User submitted a photo of window latches.
Profile picture of Paul
Paul from SWISCO responded:
This looks a lot like our 38-090 lock. Check it out and see if you agree. To uninstall yours, open the window and unscrew it from the back.
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