Method of and apparatus for molding synthetic resin screws
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United States of America Patent
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Jan 21, 1997
Grant Date -
N/A
app pub date -
Jul 20, 1994
filing date -
Dec 25, 1992
priority date (Note) -
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Abstract
An apparatus for molding a synthetic resin screw includes upper mold members 2 and 4, lower mold members 3 and 5, and four sets of slide cores 2a, 4a, 3a and 5a supported by the respective mold members and withdrawable in directions parallel to a parting plane between the upper mold members and the lower mold members.
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