Cutting torch tip
作者： Jr George R Spies
DOI:
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摘要:
lens.org 参考文章(6)
Heimann Heinrich, Spring retaining ring ,(1947)
Elof H Meden, Tip for welding blowpipes ,(1920)
Geffroy Robert Rene Louis, Device for securing the injector or feed regulator in the tube of blowpipes ,(1946)
Clifford C Anthes, Gas mixing apparatus for blowpipes ,(1951)
John Harris, Blowpipe and cutting-torch. ,(1916)
Elmer H Smith, Cutting and welding torch ,(1950)