Positive engagement interlocking phonograph record

• 1. 一种黑胶唱片留声机上的跳舞灯 [P] . 中国专利： CN215341943U . 2021-12-28
• 2. 用于音箱的唱片联动控制系统 [P] . 中国专利： CN113436655A . 2021-09-24
• 3. PHONOGRAPH RECORD INTERLOCKING MEANS [P] . 美国专利： US3778068A . 1973-12-11

  机译： 摄影记录联动装置

• 4. Tone arm vertical compensating mechanism for automatic interlocking dual phonograph record players [P] . 美国专利： US2860880A . 1958-11-18

  机译： 自动互锁双留声机电唱机的音臂垂直补偿机构

• 5. Automatic interlocking dual phonograph record player with selective control [P] . 美国专利： US2837337A . 1958-06-03

  机译： 具有选择性控制的自动联锁双留声机电唱机

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