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Summary

Description ChineseSeedDrill1637
Date
Source Tien Kung Kai Wu
Author Sung Ying Hsing. Reference "Chinese technology in the 17th century"

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image/jpeg

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652 pixel

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6.33 millimetre

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Date/TimeThumbnailDimensionsUserComment
current06:54, 7 August 2007Thumbnail for version as of 06:54, 7 August 2007652 × 951 (115 KB)World Imaging{{Information |Description=ChineseSeedDrill1637 |Source=Tien Kung Kai Wu |Date=1637 |Author=Sung Ying Hsing. Reference "Chinese technology in the 17th century" }}

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