The inventor of the Sound educator, Mr E. Thorp Hincks, pictured with his invention which subjected the ear to the recurrence of sounds whose pitch, intensity and timbre had been selected expressly for the purpose.
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Details
Creative#:
TOP23899184
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
No
Property Release:
No
Right to Privacy:
No
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