| 摘要 |
921,438. Seals. W. R. GRACE & CO. Aug. 5, 1960 [Aug. 18, 1959], No. 26689/62. Divided out of 921,437. Class 146 (2). A deformable clip for sealing the twisted neck of a collapsible bag container, is shaped as shown in Fig. 3. The clips may be of differing sizes to accommodate varying bags and they may be marked with identifying data. The adjustable sealing head is described in Specification 921,437. |
