Ball cleaning apparatus

作者: Donald A Molander

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参考文章(13)
Douglas F Freitas, Device for cleaning bowling balls ,(1946)
Herman J Schelhammer, Hiemann Walter, Hard rubber lining for receptacles ,(1940)
Charles E Haskins, Device for cleaning balls ,(1939)
Rayna H Mccormick, Football cleaning machine ,(1961)
Samuel Friedman, Shoe shining fixture ,(1962)
Charles P Sheldon, Bowling ball cleaner and guide ,(1942)
Jr Georges Samson, Cleaning device for bowling balls ,(1962)
William R Bogard, George A Gruss, Bowling ball cleaning and polishing apparatus ,(1956)
Tijmstra Sijbren, Gabler George Charles, Art of lining tanks ,(1930)