Unless there is an internationally acknowledged patent, there nothing illegal about making a product to sell, UNLESS you put somebody else's name on it.
I'm sure that whoever manufactured the transbrake for speedmaster was told to copy somebody else's product, (which lots of trans manufacturers do) but neglected to tell them not to copy the name (for crying out loud). The Chinese did what they were told, speeemaster just neglected to tell them not to engrave somebody else's name on a speedmaster product.
Oops.