| http://www.w3.org/ns/prov#value | - The principal object of our invention is to attain a high and uniform degree of effectiveness in closing and sealing the bottles or other containers, notwithstanding some irregularity in forming the neck openings to be sealed, and other objects are to provide a simple and inexpensive cap which can be cheaply manufactured and which can be applied and removed easily by manual operation a great numbe
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