>>12668140These are a fucking joke.
Air conditioning: Willis H. Carrier, 1902
Automatic transmission: Sturtevant?, 1904
Bicycle: Karl Drais, 1817
Baby stroller: William Kent, 1733
Cellular phone: Motorola, 1973
Rotating mixer (egg beater): Ralph Collier, 1856
Elevator: FUCKING ARCHIMEDES, 236 BC
I just went through some of the first ones, but I think you can start to get an idea of how farcical this stuff is. There may very well be important black inventors out there, but now they're buried under a mountain of frauds. If anyone makes a claim about a black inventor making anything of significance, you should as a rule assume it's bullshit unless given solid evidence to the contrary.