Isaac Singer
18111875
American inventor and business leader who developed the Singer sewing machine and founded one of the first American multi-national businesses
Đã tìm thấy 2 trang tưởng niệm
Xem tất cả trong Cuộc đời với bộ lọc đã áp dụng18111832
French mathematician who solved the 350-year-old problem of polynomial solvability by radicals, foundational to Galois theory and group theory
