Viplex window latch

I have replacement windows made by a company called Viplex. I think they're out of business. One of the windows is broken due to the latch, which bears the patent # 5139291. When I look at the pictures on your website, I see latches that are ALMOST identical to what I need, but I'm unsure if they are the right ones or not. Mine have metal/steel that are in the center of the latch, and the metal/steel protrudes out from one end. I didn't see that in your images. Is there a way I can check with someone, maybe send a photo of the latches I need to replace, and get some help to ensure I order the right ones? Thanks so much

Hi Paul,
Thanks for your response. Attached are a few images. Hopefully you can help me decipher which ones to order. The pictures are the two latches (right side latch and left side latch) removed from the window.

Look forward to your response.

Thanks for pointing me to the pivot bar! I will check the measurements. One last question. Is there a left side bar that is different than the right side bar? I only see on pivot bar item for sale. Just not sure if I need to order specifically for each side of the window. Thx so very mich