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Class Information
Number: 215/25
Name: Bottles and jars > Nonrefillable > Guard or valve type > Valves > Multiple type
Description: Subject matter in which the novelty lies not in the specific construction of the valve but in the combination of a plurality of valves.

Patents under this class:

Patent Number Title Of Patent Date Issued
5484084 Non-fillable stopper Jan. 16, 1996
4523687 Non-refillable pourer Jun. 18, 1985
4171236 Method of making frangible seal Oct. 16, 1979

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