Copperhead is caught in the crushing grip of The Robot.
| Release Date | December 5, 1940 | |
|---|---|---|
| Status | Released | |
| Original Title | Mysterious Doctor Satan: Doctor Satan's Man of Steel | |
| Runtime | 16min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | — | |
| Production Companies | ||
