replacement tilt latch

A home owner from USA says:
I am looking for a replacement tilt latch for my double-hung window. It has no make / model on it.

Have a patent# on it though - 5,139,291 with the letter "B" etched in the center of the latch...and there is a number "075" printed on one end.

Please let me know if you can identify this and if so, the cost.
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Paul from SWISCO responded:
First, look at our 26-243 and 26-244 latches and see if they match your own. Make sure to carefully compare all dimensions we show. If not, please remove the existing tilt latches from the window and take a few pictures of them for me to see. Thanks!
A handy person from Nashua says:
Thanks Paul,

Here are the pictures of the latch.
I still need to do the measurements.

User submitted photos of a tilt latch.
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Paul from SWISCO responded:
Thanks. Now that I see it, I think our 26-263 and 26-264 may be better matches. See if you agree. The dimensions are still very important.
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