I don’t know the manufacturer

A quick learner from Los Angeles CA says:
July 19, 2018
I finally opened one of the windows and it seems that the pivot bar is missing on one side....
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Paul from SWISCO responded:
July 24, 2018

Hi there. We recognize this pivot shoe. It looks very similar to our 15-087 which uses coil springs. Unfortunately, I can not say the same for your pivot bar because it is still installed and it makes it difficult for us to see the "body" of the part. There is a possibility you may be able to use our 26-089 with 33-096 self-tapping screws. Take a closer look and get back to us with some thoughts. 
Coil Housing Pivot
Coil Housing Pivot
15-087
$5.97
Pivot Bar, 3"
Pivot Bar, 3"
26-089
$1.15
Phillips Pan 8-32 x 3/8" Self-Tapping SS Machine Screw
Phillips Pan 8-32 x 3/8" Self-Tapping SS Machine Screw
33-096
$0.37
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