| 摘要 |
<p>The device has a single rectilinear/curve/wave type bar placed on a base of a cylindrical tube, so that the tube preserves its inflated form even when the tube does not contain a product to alert a user during exhaustion of the product. The bar is made of a round/square/flat/polygon shaped metal/synthetic rigid wire, painted, plasticized and coated with zinc and has variable length adapted to dimension of the tube. Ends of the bar are round and swollen in shapes. Branches have different length, and are slightly opened. The bar is provided with a locking unit i.e. pin.</p> |
