BSI - BS 3171
Characteristics & method of test of air conduction hearing aids using electronic amplification
inactive, Most Current
| Organization: | BSI |
| Publication Date: | 23 November 1959 |
| Status: | inactive |
| Page Count: | 10 |
| ICS Code (Aids for deaf and hearing impaired people): | 11.180.15 |
Document History
BS 3171
November 23, 1959
Characteristics & method of test of air conduction hearing aids using electronic amplification
A description is not available for this item.