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11.Apparatus for testing the breaking strength of match-splints and the like. 失效
Title translation: 用于测试匹配突破强度等的设备。公开(公告)号:US1200086A
公开(公告)日:1916-10-03
申请号:US1914877035
申请日:1914-12-14
Applicant: DIAMOND MATCH CO
Inventor: CRUSER FREDERICK VAN DYKE
CPC classification number: G01N3/24