冷間始動 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "冷間始動" in Japanese language version.

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5,821^st place

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1,602^nd place

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800^th place

2,213^th place

5,318^th place

387^th place

coocan.jp

US patent 2487326, A. L. Freeman, "Electric Internal-Combustion Engine Head Bolt Heater", issued 1949-11-08