1728941

Information

• Patent Grant
• 1728941

• References
• Source

• Patent Number

  1,728,941

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1929
  95 years ago

• CPC

  • C22B34/20 - Obtaining niobium, tantalum or vanadium

• US Classifications

  • 419 - Powder metallurgy processes
  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures