Inner locking mechanism patent 5820.170

A quick learner from Naples/ Marco island florida says:
One of the lock mechanism hooks - upper- does not engage.. Where could we buy?? TY
User submitted a photo of a patio door handle.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I recommend removing your mortise lock from the door and seeing how well it compares to our 82-265. Let me know what you think.
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