Old Awning Window parts

A handy person from Fort Myers, FL says:
Hello and thank you for doing and selling what you do!!!
I found a Patent Number on the plastic lock part that broke and fell off the other arm to my awning window. I searched it in Google Patents to find the attached mages. A good one at that. However there are no measurements. I think this is an old Anderson window because I recently purchased a window crank that was an Andersen. I purchased two Order Number 583845 placed 11/06/2014. Wrong parts. Happens, Perhaps your experts can come up with the correct parts. Thank You So Much Guys and Gals. . .
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Dave Sr. from SWISCO responded:
The parts you purchased are for the Andersen aluminum awning window. The 39-539 does look like the drawing you sent us. Not sure if we can supply the part you need, though. I would like to see photos of the hardware you need to replace. Sometimes illustrations aren't the best method. Let me know!
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