|
US4744674A
|
Non-reclosable mechanically fillable and closable link bag … |
Expired / Lapsed
|
1987-01-07 |
1988-05-17 |
33 |
Details
|
|
US4672723A
|
Stabilized reclosable extruded plastic fasteners |
Expired / Lapsed
|
1986-05-27 |
1987-06-16 |
31 |
Details
|
|
USRE29208E
|
Method and apparatus for manufacturing synthetic resin tubu… |
Expired / Lapsed
|
1975-09-30 |
1977-05-10 |
26 |
Details
|