K-9 1

An image from the commercial.

K-9 2

Einstein seems to like 'snack time'!

"Fido doesn't seem to mind Doc's experimental sawdust dog food!"
—K-9 Cafeteria advertiser

A K-9 Cafeteria was a device constructed by Emmett Brown. The machine was essentially a timed door that opened to reveal a compartment of dog food.

The device was probably a later/early evolution of a similar automatic dog feeder that was capable of opening and releasing canned dog food into a bowl at a set time.

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