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公开(公告)号：US807432A
公开(公告)日：1905-12-19
申请号：US1905239598
申请日：1905-01-04
Applicant: BLAKEY MILDRED
Inventor： BLAKEY MILDRED
CPC classification number: B01J3/048 , F17C1/06 , Y10T428/12292 , Y10T428/12403
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