Old DNS sliding door lock

A professional from Bethesda, MD says:
My customer have an old sliding door lock
That not functions.
On the lock is written DNS. See pictures.
The Measurement of the lock from top 6".bs
Around 5/8".I need now
User submitted photos of patio door hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Thank you for posting. I think this lock resembles our 82-226. Check it out and let me know if you agree!
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