Patio door handle

A quick learner from USA says:
I need a replacement handle. The original one was made by DNS Ind. There are no other identifiers on product. It is a surface mount with handles on outside and inside front frame of sliding door. The manual "on/off" (green/red) switch is broken and therefore the latch and keeper are not working and the door is no longer secure. The two screws which fasten the handles to the frame appear to be 6 9/16" apart. Is there a replacement handle available?
User submitted image of their door hardware.
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Tom from SWISCO responded:
This particular handle set is no longer made, but I think you may be able to use our 82-036 as a substitute. Take a look and see what you think!
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