Hello,
I have an old bottom sliding-door rollermarked US PAT 3750337. The roller is approximately 40mm wilde and 70mm high. It is still installed in the door an connotatie be remover nog. Can you confirm walther your is suitable replacement? I am located in the Netherlands.
With kind regards
Help Identifying Hardware
Quick Learner
Sep 17, 2026 10:23 am
2 Replies
Tom from SWISCO
Sep 22, 2026 10:50 am
I'm afraid that patent number doesn't tell me what roller you have. This particular patent is related to several different parts in our records. Patent numbers in general are not reliable methods of identification.
This is a photo identification service, so photos of the old part are necessary as a rule. Once you show us clear and unobstructed photos of the roller, we will do our best to find a replacement option.
