Built-in device of a piggy bank that grows as you save

• 1. 储钱罐结合移动支付进行储蓄的方法和系统 [P] . 中国专利： CN108898373A . 2018-11-27
• 2. 一种储钱罐的传动系统及储钱罐 [P] . 中国专利： CN210299859U . 2020.04.14
• 3. Cashless piggy bank uses electronic money cards for both depositing and saving money with a processor for controlling the process and a display for showing amounts deposited and saved over time as well as other data [P] . 德国专利： DE10031308A1 . 2002-01-10

  机译： 无现金的存钱罐使用电子货币卡来存入和存钱，同时还具有用于控制过程的处理器和用于显示随时间推移存入和存入的金额以及其他数据的显示器

• 4. A piggy bank with food to eat whenever you save [P] . 韩国专利： KR970056620U . 1997-11-10

  机译： 存钱罐，随时随地可以吃的食物

• 5. Piggy bank with coins saved control [P] . ES31144Y . 1952-10-16

  机译： 储钱罐与硬币保存控制

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