Improvements in key actions of' pianofortes

• 1. 对钢琴琴键动作机构的改进 [P] . 中国专利： CN1014749B . 1991.11.13
• 2. 对钢琴琴键动作机构的改进 [P] . 中国专利： CN1033331A . 1989-06-07
• 3. Improvements in and relating to pianoforte keys, pianoforte actions and the like [P] . 英国专利： GB351607A . 1931-07-02

  机译： 送琴键，送琴动作等方面的改进

• 4. Improvements in, or connected with the Pneumatic Actions of Mechanical Players for Pianofortes and Analogous Keyed Musical Instruments. [P] . 英国专利： GB190801550A . 1908-07-09

  机译： 改善或完善了用于钢琴和类似键乐器的机械演奏者的气动操作。

• 5. Improvements in key actions of' pianofortes [P] . AU1932020B . 1921-09-13

  机译： 钢琴钢琴关键动作的改进

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• 2. Application of dynamic compaction and rolling compaction in the subgrade improvement of Qarhan-Golmud Highway [J] . Yu Zhang, JianKun Liu, JianHong Fang, 寒旱区科学（英文版） . 2013,第005期
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• 6. Performance Improvement of Underwater Continuous-Variable Quantum Key Distribution via Photon Subtraction [O] . Qingquan Peng, Guojun Chen, Xuan Li, 2019

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