This category has the following 53 subcategories, out of 53 total.
- 20th-century Egyptian engineers (42 P)
- 20th-century Japanese engineers (25 P)
- 20th-century Mexican engineers (1 C, 11 P)
- 20th-century Norwegian engineers (89 P)
- Yugoslav engineers (28 P)
Pages in category "20th-century engineers"
The following 76 pages are in this category, out of 76 total. This list may not reflect recent changes.