FR577451A - Improvements in processes to obtain steel objects with a soft core and a hard surface - Google Patents

Improvements in processes to obtain steel objects with a soft core and a hard surface

Info

Publication number
FR577451A
FR577451A FR577451DA FR577451A FR 577451 A FR577451 A FR 577451A FR 577451D A FR577451D A FR 577451DA FR 577451 A FR577451 A FR 577451A
Authority
FR
France
Prior art keywords
processes
hard surface
soft core
obtain steel
steel objects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Nils Hofmann Aall
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR577451A publication Critical patent/FR577451A/en
Expired legal-status Critical Current

Links

FR577451D 1923-11-22 1923-11-22 Improvements in processes to obtain steel objects with a soft core and a hard surface Expired FR577451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR577451T 1923-11-22

Publications (1)

Publication Number Publication Date
FR577451A true FR577451A (en) 1924-09-05

Family

ID=8954749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR577451D Expired FR577451A (en) 1923-11-22 1923-11-22 Improvements in processes to obtain steel objects with a soft core and a hard surface

Country Status (1)

Country Link
FR (1) FR577451A (en)

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