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公开(公告)号：CA289636A
公开(公告)日：1929-05-14
申请号：CA289636D
Applicant: EASTERN MFG COMPANY
Inventor： CALLAN JOHN GURNEY , ALLEN ALBERT , WEBB STUART WESTON
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公开(公告)号：CA282335A
公开(公告)日：1928-08-07
申请号：CA282335D
Applicant: EASTERN MFG COMPANY
Inventor： ALLEN ALBERT , CALLAN JOHN GURNEY , WEBB STUART WESTON
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