| Patents for B31C 1 - Forming paper tubes or pipes by feeding at right angles to the winding mandrel centre line (505) | |
|---|---|
| 06/1978 | |
| 06/20/1978 | US4095512 Winding of uniform diameter tubes |
| 02/1977 | |
| 02/22/1977 | US4008651 Method and apparatus for the formation of tubular containers from blanks |
| 02/22/1977 | US4008649 Apparatus for the preparation of a cylindrical corrugated article |
| 11/1976 | |
| 11/16/1976 | US3991663 Observation of moving webs |
| 03/1976 | |
| 03/09/1976 | US3943030 Apparatus for producing suitcase frames |