| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1918 |
|
Electrical Experimenter, January 1918 | Experimenter Publishing Company | MAGAZINE | 610 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1918 |
|
Electrical Experimenter, January 1918 | Experimenter Publishing Company | MAGAZINE | 610 |