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Youngstown Sheet and Tube Co
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Youngstown Sheet and Tube Co
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Application filed by Youngstown Sheet and Tube CofiledCriticalYoungstown Sheet and Tube Co
Priority to FR104893ApriorityCriticalpatent/FR1521758A/fr
Application grantedgrantedCritical
Publication of FR1521758ApublicationCriticalpatent/FR1521758A/fr
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01N27/80—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material
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General Health & Medical Sciences
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FR104893A1967-05-021967-05-02Procédé de mesure de la dureté d'un acier
ExpiredFR1521758A
(fr)