> I’ve worked on cars and other mechanical things for most of 3 decades. I’ve never needed a sticker telling me what size standard bolts were. > On the broken,

> I’ve worked on cars and other mechanical things for most of 3 decades. I’ve never needed a sticker telling me what size standard bolts were. > On the broken, ruled as patent-infringing part, what do you want to happen that would comply with patent law? If it was compatible with Anderson, you’d just buy that. Since it wasn’t and the original company isn’t allowed to keep making them… That is true of professional mechanics. A disabled guy with a screwdriver who never changed his own oil needs some help. I did a poor job picking examples. Let's take about the complicated parts. The joystick controller on most electric wheelchairs uses a very particular connector. If I do not know the brand and model number on that, I am probably screwed. "Trim" pieces are often required to prevent a disabled person's limp limb from being sucked into a gap near a tire. Trying to order replacements for those is almost impossible.