Washing machine

SCG Thorbjorn - US Patent 1,833,437, 1931 - Google Patents
This invention relates to improvements in machines for washing clothes of the type having a
spherical washing drum adapted to rotate around a horizontal axis and having no outer …

[引用][C] Washing machine

SCG Thorbjorn - US Patent 1,833,437, 1931 - freepatentsonline.com