|
US3929538A
|
Method of assembling a thermoplastic sleeve onto a pipe or … |
Expired / Lapsed
|
1974-06-14 |
1975-12-30 |
8 |
Details
|
|
US3848904A
|
Pipe having coupling means |
Expired / Lapsed
|
1973-01-22 |
1974-11-19 |
11 |
Details
|
|
US3390890A
|
Push-joint and gasket for cast pipe |
Expired / Lapsed
|
1966-09-16 |
1968-07-02 |
0 |
Details
|