INSTRUMENT TO AID VOICE-TRAINING OF PROFOUNDLY DEAF CHILDREN
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Published:1958-05
Issue:7030
Volume:271
Page:1104-1105
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ISSN:0140-6736
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Container-title:The Lancet
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language:en
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Short-container-title:The Lancet
Reference8 articles.
1. Frahm, H. (1901) British patent no. 13888.
2. Horvitch, G. M. (1948) British patent no. 600336.
3. A Direct‐Reading Frequency Meter Suitable for High Speed Recording
4. A Simple Tonometer