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公开(公告)号：US2639142A
公开(公告)日：1953-05-19
申请号：US14295850
申请日：1950-02-08
Applicant: PERFECTION PLASTIC ENGINEERING
Inventor： LOWLER MORGAN JOHN , MORGAN WILLIAM J
CPC classification number: E05F3/224 , E05F15/63 , E05F15/75 , E05Y2201/41 , E05Y2201/422 , E05Y2800/113 , E05Y2900/132
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