Apparatus for substantially simultaneously forming multiple articles having different properties
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United States of America Patent
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Jan 20, 2004
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N/A
app pub date -
Apr 16, 1999
filing date -
Apr 28, 1998
priority date (Note) -
Expired
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Abstract
An apparatus is provided that includes a mold that includes a first cavity defining a toothbrush body, a first injection unit in fluid communication with the first cavity and a second cavity, and a second injection unit also in fluid communication with the first cavity. An apparatus is also provided that includes a mold that includes a first cavity defining a toothbrush body, a second cavity defining a toothbrush body, where the first cavity and the second cavity define substantially identical toothbrush bodies, a first injection unit in fluid communication with the first cavity and a second injection unit incapable of being in fluid communication with the second cavity.
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