千分尺 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "千分尺" in Chinese language version.

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google.com

Waitelet, Ermand L. Micrometer with adjustable barrel sleeve. US 3131482 A. Google patents. 1964 [26 August 2016]. （原始内容存档于2020-03-13）.

What is a Micrometer & How was it Developed Historically?. SGMicrometer.com. [2023-10-30]. （原始内容存档于2018-02-15）.

What is a Micrometer & How was it Developed Historically?. SGMicrometer.com. [2023-10-30]. （原始内容存档于2018-02-15）.
Waitelet, Ermand L. Micrometer with adjustable barrel sleeve. US 3131482 A. Google patents. 1964 [26 August 2016]. （原始内容存档于2020-03-13）.
Precision Measuring and Gaging. www.waybuilder.net. （原始内容存档于28 August 2016）.