| Year | 1930 |
| Date | 10-Jul |
| Volume | 63 |
| Issue | 1,522 |
| Page | 36 |
| Category | Electrical |
| Part | |
| Title | Modern Electrical Installation Work |
| Author | Frederick H.Taylor |
| Notes | China connectors, insulating materials used in electrical installation work and their application, china, slate, insulating tapes: pure para rubber strip, black tapes, plain selvedge tape, compounds |