The Incredible Hulk #3

The Hulk takes on the indestructible Banner-created robot and, in one of the more dubious plot devices in comics, succeeds in kicking him down a bottomless hole when he realizes that he cannot beat the machine. Glenn Talbot arrives on gamma base sent by the Pentagon to keep an eye on the suspicious activity of Bruce Banner. Glenn decides that keeping an eye on Betty seems like a good idea as well. The Hulk is felled while saving Gamma Base from a missile and Ross captures him in a special restraint built by Bruce Banner based on a design by Tony Stark.