Split arm operator

A quick learner from Levittown New York says:
Trying to identify an item. Made in USA, has a logo on it (Truth), and the numbers R30842. On the back it has U.S. PAT. 4,241,541 also PAT. 1982. I need to replace the left snd right operator.
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Casey from SWISCO responded:

Hello,

Your photos look like an older version of the 39-035 and 39-036 Entrygard casement operators. Take a look and see how the specifications compare. Thank you!

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