Can you identify my operator?

A handy person from Manitowoc, WI says:
Hi: See attachment of a picture of my Awning Window Operator.
Can you identify the operator and if I can buy a replacement?
I do not see a name on the operator, only a patent #4241541 and made in the USA stamped on one edge.
Thank You Richard Kunz
Thumbnail of the uploaded file named GEDC0046.JPG
Profile picture of Bob
Bob from SWISCO responded:

Thanks for posting. How does our 39-324 Awning Operator compare? Review the dimensions below and let me know if this matches what you need.

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