Sliding patio door lock

A quick learner from 70815 says:
Patent 919213
Patent 1973
Patent 3.596.95
A quick learner from 70815 says:
Internal lock for sliding patio door
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Casey from SWISCO responded:

Hi there. Have a look at both our 82-211 and 82-214 mortise latch and keeper. Carefully compare your measurements with each of ours and let us know if any one of these are a match. 

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