Kodak used their own film formats, 620 spools can be used to re spool 120 film.
Others can be used with 35mm laid inside the appropriate papers.
Kodak introduced the portable hand held camera many years ago, they called it the Brownie.
This is just a small selection from their massive catalogue of past cameras. I've left the folding cameras that I have out of this list, they seemed to fit better elsewhere.