| GEAR HOBBING: CHECKING THE FINISHED GEAR |
1944 |
Castle Films |
12 min |
16mm |
|
Sound |
| GEAR HOBBING: CUTTING A SPUR GEAR |
1944 |
Castle Films |
16 min |
16mm |
|
Sound |
| GEAR HOBBING: GEAR BLANK PREPARATION |
1944 |
Castle Films |
14 min |
16mm |
|
Sound |
| GEAR HOBBING: THE HOB AND ITS USE |
1944 |
Castle Films |
11 min |
16mm |
|
Sound |
| GEAR HOBBING: THE HOBBING MACHINE |
1944 |
Castle Films |
15 min |
16mm |
|
Sound |