This category has the following 53 subcategories, out of 53 total.
- 20th-century Egyptian engineers (39 P)
- 20th-century Japanese engineers (22 P)
- 20th-century Mexican engineers (1 C, 11 P)
- Yugoslav engineers (26 P)
Pages in category "20th-century engineers"
The following 75 pages are in this category, out of 75 total. This list may not reflect recent changes.