Melon ball cutting machine

作者: George R Lum

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参考文章(6)
Albert R. Thompson, Split peach pitter ,(1935)
Percy Jepson, Peach treating machine ,(1938)
Joseph Stasinski, Edward Thebaud John, Frederick Edinger, Ice cream dipper, power operated ,(1937)
John Topalian, Vegetable-cutting apparatus. ,(1917)
Charles E. Russell, Ice cream spoon ,(1977)