Replacement parts to make window stay up and not drop down

A quick learner from Marlton, NJ says:
I was told these are pivot bars. I see one is broken off and a couple of others are not inserted onto the window at the bottom. Thus, when the window is raised, the pivot bar remains in the lowered position and the window drops back down. I cannot identify the manufacturer of the windows. I had them installed by a contractor in NJ, who is no longer in business. I appreciate any assistance you can give me.

User submitted photos of a pivot bar.
Profile picture of Paul
Paul from SWISCO responded:
Hello, Frank. This pivot bar looks like our Simonton 26-336. How well do its dimensions match yours?
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