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公开(公告)号：US784131A
公开(公告)日：1905-03-07
申请号：US1904203265
申请日：1904-04-15
Applicant: BERBECKER & ROWLAND MFG COMPANY
Inventor： ASSEL JACOB
CPC classification number: G05G1/12 , Y10T16/506
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公开(公告)号：US696534A
公开(公告)日：1902-04-01
申请号：US1902088597
申请日：1902-01-06
Applicant: BERBECKER & ROWLAND MFG COMPANY
Inventor： ASSEL JACOB
CPC classification number: B44C5/00 , A44C25/00 , Y10S411/918 , Y10T16/201 , Y10T403/7047
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