Halbert C. Christofferson
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Filmography in the catalog
Credited on 2 films (1961–1966) — matched by name in the Creator or Credits field.
| Year ▲ | Title | Creator | Length | Format | Color | Sound |
|---|---|---|---|---|---|---|
| 1961 | Graphing Linear Equations | Coronet Films | 11 min | Color | ||
| 1966 | Percent, Why and How | Coronet Films | 12 min | Color |