Help identifying window operator U.K. PAT. 2135397

Question

I am looking for a replacement window operator and I am hoping someone can help me find it. I have attached several pictures which could help identify it, the only writing on is U.K. PAT. 2135397.

Thank you

User submitted picture of window operator UK PAT 213597.

Casey · Accepted Answer

Please see SWISCO product code 39-312, Awning Operator. Compare the measurements and let us know what you think.