| |
|
World War I railway artillery of Germany
|
127473 |
| |
|
Hybrid vehicle
|
127477 |
| |
|
Snowmobile
|
127478 |
| |
|
Land transport in Antarctica
|
127481 |
| |
|
Engine
|
127488 |
| |
|
Expedition cruising
|
127520 |
| |
|
Partial zero-emissions vehicle
|
127491 |
| |
|
tool
|
127437 |
| |
|
Sliding vehicles
|
127498 |
| |
|
Canadian inventions
|
127499 |