Looking for Patio Door Replacement Lock Set

A home owner from Chandler, Arizona says:
Hello,

I'm trying to locate either a replacement lock or lock/handle set for my patio door. The first photo has some markings on it that I hope will lead to the manufacturer's name.

Let me know if you need more information and thanks!

Mark
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Casey from SWISCO responded:

Hello,

If the key lock is the problem, see the 82-310 . If you're referring to the mortise lock in the center of the door, take a look and compare the 82-218 to your assembly. Thanks for posting! 

A home owner from Chandler, Arizona says:
Perfect! Thank you Casey for including all the options!
How to install a Legacy Handle Set
How to install a Legacy Handle Set
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How to install the 82-218 Mortise Lock
How to install the 82-218 Mortise Lock
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How to Install a Key Lock on a Patio Door
How to Install a Key Lock on a Patio Door
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