1986 sliding glass doors unknown manufacturer

Hello! Looks like you need pieces of the door trim and a new roller. I'm afraid we won't be able to help with those trim parts. The only thing we could potentially replace  is the wool pile in the first photo, but it doesn't seem like you need that exactly. For these parts, the only company who could help is probably going to be the manufacturer of the doors themselves.

As for the roller, we have a couple different options that may work. The 81-030 stands out in my mind as a top contender, but we also have the 81-095 and 81-138, which are similarly designed. Now, I think the 81-030 looks closest by just eyeballing your picture, but my eyeballs aren't as good as a tape measure. Ultimately, you're going to want to measure the original part to confirm that the 81-030  is a match.

I'm afraid it's not possible to identify door brand based on the rollers alone. I suggest checking the inside of the door frame for a sticker or label that might tell you who made it.