Electric guitar training device for children
LIN, TANG-HAO, YANG, ZHI-JIE, AI, WEN-HUANG, WANG, ZHONG-QING, CHEN, XIN-FA, CHEN, GUANG-XIONG, GUO, REN-ZHANG
Year of Publication 01.11.2011
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Year of Publication 01.11.2011
Patent