Need replacement part

A quick learner from San Diego says:
I'm looking to replace my patio door lock. It has no name on it or the door. It was installed about 30 years ago when the garage was converted into a bedroom. It is white on the exterior and brass inside. The exterior handle has markings on the inside. It reads:

U.S Patent

Sash Control

There is not a key lock to it, but if we can find a replacement that has one it would be preferred.

The entire assembly is around 8 1/4 inches and the lock inset measuring 5 3/4 inches.

Please let me know if I can provide you with any additional clues. I look forward to hearing from you.

User submitted photos of patio door hardware.
Profile picture of Tom
Tom from SWISCO responded:
Sure, check out our 82-075 or 82-034. One of these may be what you want, depending on the thickness of your door. Also see the 82-229 mortise lock.
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