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Credits | |
2 titles |
Past Television (1 title) | Episodes |
---|---|
Modern Marvels (2000)
(TV Series) - Historical Consultant (1 episode, 2000), Self - Metallurgical Engineer (1 episode, 2000)
Gold Mines (Jul
31,
2000)
Season 6,
Episode 21
-
Self - Metallurgical Engineer (as Dr. Ralph E. Pray),
Historical Consultant
|
1
|
Self (1 title) |
---|
Modern Marvels (2000)
(TV Series) - Self - Metallurgical Engineer (1 episode, 2000)
Gold Mines (Jul
31,
2000)
Season 6,
Episode 21
-
Self - Metallurgical Engineer (as Dr. Ralph E. Pray)
|