Searching for what brand window has HTL on latch

A quick learner says:
I'm trying to find out what type my windows are. they have HTL on the locking latch. I need covers for the rollout arm.
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Bob from SWISCO responded:

I am afraid this exact lock is no longer made. See our 38-139. I'm not certain this could work as a replacement, but it's our best bet. Take a look and see what you think. 

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