Sheets for animals, sheet, bags, daily goods, ink and packaging materials
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United States of America Patent
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Sep 29, 1998
Issued Date -
N/A
app pub date -
Sep 17, 1996
filing date -
Dec 25, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Since the present invention is composed of required component capable of changing in color with which a daily product and so on are impregnated, painted or printed, such daily product is convenient in daily life by indicating a contact between the required component and urine and so on.
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Cited Art Landscape
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