|
EP0440317A1
|
Method and apparatus for testing ferromagnetic work pieces … |
Expired / Lapsed
|
1991-01-22 |
— |
0 |
Details
|
|
GB1022510A
|
Improvements in or relating to welded joints between tubes |
Expired / Lapsed
|
1965-01-30 |
— |
0 |
Details
|
|
DE1182484B
|
Elastic connector for metallic pipes |
Expired / Lapsed
|
1959-05-15 |
— |
0 |
Details
|