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GJB 1773-1993 Specification for HK-91M anti-noise transmitter
HK-91M型抗噪声送话器规范
| Category No.: | GJB | Valid Status: | valid |
| Issued Organization: | Issued Date: | 1993-04-29 | |
| Implemented Date: | 1994-6-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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