| Author: | Bensema, W. D. |
|---|---|
| Additional Authors: | Adams, John W.,, Kanda, Motohisa, |
| Year: | 1974 |
| Document Type: | NBSA |
| Issuing Agency: | Electromagnetics Division, Institute for Basic Standards, National Bureau of Standards, |
| SUDOC: | C 13.46:654 |
| Series: | U.S. Bureau of Standards NBS technical note ; |
| Report Number: | 654 |
| Subjects: | Mine safety |
| Mine communication systems | |
| Links: | https://hdl.handle.net/2027/uiug.30112105086562 |
| https://hdl.handle.net/2027/mdp.39015095042969 |