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公开(公告)号：US2309106A
公开(公告)日：1943-01-26
申请号：US30220239
申请日：1939-10-31
Applicant: SPECIALTIES DEV CORP
Inventor： DOXSEY ARTHUR M , ERNEST HEIGIS HENRY
IPC: A62C35/64
CPC classification number: A62C35/645
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