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公开(公告)号：US861615A
公开(公告)日：1907-07-30
申请号：US1905243968
申请日：1905-02-03
Applicant: CLARENCE L ALTEMUS , HERBERT B BOWLES , SMITH JAMES M
Inventor： SMITH JAMES M
CPC classification number: H01H3/004
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公开(公告)号：US822782A
公开(公告)日：1906-06-05
申请号：US1904209330
申请日：1904-05-23
Applicant: CLARENCE L ALTEMUS , HERBERT B BOWLES , SMITH JAMES M
Inventor： SMITH JAMES M
CPC classification number: F02P7/00
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