| http://www.w3.org/ns/prov#value | - Still another object of the invenion is to provide a vchemical spoilage indicator which will meet' all sanitary standards of the public health authorities, which will not affect the milk or food as to taste, color and purity, and in which the indicator material is not in direct contact with the milk or food product. i i With the above and other objects inview, as will. be presently apparent, the i
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