搋子 (Chinese Wikipedia)

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

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archive.org

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worldwide.espacenet.com

  • US patent US158937A,John S. Hawley,「Improvement in vent-clearers for wash-bowls」,发行于1875-01-19 
  • US patent US186206A,John S. Hawley,「Improvement in vent-clearers for wash-bowls」,发行于1877-01-16 

ettoday.net

hisplumber.com

patents.google.com

sina.com.cn

news.sina.com.cn

web.archive.org

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