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公开(公告)号：US981146A
公开(公告)日：1911-01-10
申请号：US1910545048
申请日：1910-02-21
Applicant: DIAMOND POWER SPECIALITY
Inventor： WALLER THOMAS S , BARNHILL EDWARD B
CPC classification number: F28G3/166
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公开(公告)号：US969316A
公开(公告)日：1910-09-06
申请号：US1909524977
申请日：1909-10-27
Applicant: DIAMOND POWER SPECIALITY
Inventor： WALLER THOMAS S , BARNHILL EDWARD B
CPC classification number: F28G3/166
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