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公开(公告)号：US825214A
公开(公告)日：1906-07-03
申请号：US1905283465
申请日：1905-10-19
Applicant: WOLFF MFG COMPANY L
Inventor： HOELSCHER HERMAN M , CLIFFORD JOHN J
CPC classification number: F16K11/165 , Y10T137/86992
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