FR481431A - Further training in the manufacture of refractory metals - Google Patents

Further training in the manufacture of refractory metals

Info

Publication number
FR481431A
FR481431A FR481431DA FR481431A FR 481431 A FR481431 A FR 481431A FR 481431D A FR481431D A FR 481431DA FR 481431 A FR481431 A FR 481431A
Authority
FR
France
Prior art keywords
manufacture
refractory metals
further training
training
refractory
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR481431A publication Critical patent/FR481431A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/36—Obtaining tungsten

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
FR481431D 1914-05-25 1915-05-01 Further training in the manufacture of refractory metals Expired FR481431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US481431XA 1914-05-25 1914-05-25

Publications (1)

Publication Number Publication Date
FR481431A true FR481431A (en) 1916-12-05

Family

ID=1518537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR481431D Expired FR481431A (en) 1914-05-25 1915-05-01 Further training in the manufacture of refractory metals

Country Status (1)

Country Link
FR (1) FR481431A (en)

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