Perpetual calendar ruler

• 1. 科技集成万年历速查尺 [P] . 中国专利： CN2069136U . 1991.01.09
• 2. 用于万年历机械时钟的日期轮机构及万年历机械传动装置 [P] . 中国专利： CN112562485A . 2021-03-26
• 3. Mechanism of date, in particular of perpetual calendar and perpetual calendar of perpetual calendar. [P] . 瑞士专利： CH713334A2 . 2018-06-29

  机译： 日期的机制，特别是万年历和万年历的万年历。

• 4. DEVICE FOR ACTUATING A CALENDAR STAR OF A SEMI-PERPETUAL OR PERPETUAL CALENDAR MECHANISM [P] . 欧洲知识产权局专利： EP3734373A1 . 2020-11-04

  机译： 用于激活半永久或永久日历机制的日历星的设备

• 5. Mechanism mechanical perpetual calendar with monthly view and perpetual calendar with such a mechanism. [P] . 瑞士专利： CH704111B1 . 2012-05-31

  机译： 机械式带万年历的机械万年历和带这种机制的万年历。

• 1. Meltblown nonwovens,a perpetual cash printer? [J] . Gao Huabin, Zhong Mengxia 中国纺织（英文版） . 2020,第004期
• 2. Kunming：City of Perpetual Spring [J] . 今日中国：英文版 . 2017,第005期
• 3. Kant： The Sweet Dream of Perpetual Peace [J] . Theodosios, N., Pelegrinis 哲学研究：英文版 . 2017,第002期
• 4. Electronic Perpetual Calendar Design Based on CPLD [C] . Li Hui, Li Jing International Conference on Education, Management, Computer and Society . 2017
• 5. Continuous calendar and academic growth: A study of the impact of continuous calendar schools on academic growth of low-socioeconomic-status students [D] . Schumacher, Lauren E. 2015
• 6. An analysis of calendar performance in two autistic calendar savants [O] . Daniel P. Kennedy, Larry R. Squire 2007
• 7. Electronic Perpetual Calendar Design Based on CPLD [O] . Hui Li, Jing Li 2017

• 1. Pricing Perpetual American Put Option in theMixed Fractional Brownian Motion [J] . . 数学计算：中英文版 . 2015,第002期
• 2. The Entropy Law and the Impossibility of Perpetual Economic Growth [J] . Henrique N. Sá Earp ,Ademar R. Romeiro . 应用科学（英文） . 2015,第10期
• 3. 官尺·营造尺·乡尺——古代建筑实践中用尺制度再探 [C] . 李浈 . 第二十届中国民居学术会议 . 2014
• 4. 基于Android与Thrift的万年历系统设计与实现 [A] . 牛康 . 2020