Window Part

I am looking for these two parts. One is in a "T" shape and was found broken at the bottom of the encased metal spring. Is is mainly grey, has a metal circular thing that is inside towards the top of the "T" shape. It also has a white more flexible part hooked in the back towards the bottom of the circular part.

The markings I found on it were, towards the top the "T", pat, then a dotted 0/tree looking marking, what could be a capitol A or a small triangle, then B10108.

On the bottom of the "T" one side says Pat, the other side says6679000