| |
|
Arab inventions
|
131175 |
| |
|
Hédervári Péter - Péter Hédervári
|
94877 |
| |
|
torquetum
|
131176 |
| |
|
Kerrison Predictor
|
131241 |
| |
|
1964
|
131230 |
| |
|
Deltar (Delta Getij Analogon Rekenmachine)
|
131249 |
| |
|
navigáció - navigation
|
131251 |
| |
|
E6B
|
131247 |
| |
|
Niagara-vízesés - Niagara Falls
|
131217 |
| |
|
Naval battles of the First Punic War
|
94890 |