|
US3006027A
|
Method and apparatus for spinning and stretching viscose ra… |
Expired / Lapsed
|
1958-06-27 |
1961-10-31 |
2 |
Details
|
|
US2828229A
|
Cellulose fibres coated with cotton wax |
Expired / Lapsed
|
1954-12-14 |
1958-03-25 |
0 |
Details
|
|
DE820948C
|
Spinneret for the production of artificial threads |
Expired / Lapsed
|
1944-12-16 |
1951-11-15 |
0 |
Details
|