From appendixes A4/6 y A5/6: As we know, the Caminez engine was made by Fairchild but its inventor was Harold Caminez.

-It was one of the technicians of the Engine Design Section of the US Army Air Services.

"Caminez diagram"

"Caminez patent cutaway drawing"

-Caminez engines with twin cam instead of crankshaft were actually manufactured by Fairchild.

"Inner schematics of the Caminez engine"

-The thin rods connecting the four rollers of the piston bases are keeping them stuck to the 8-shaped lobe.

"A Fairchild-Caminez installed"