1982874

Information

• Patent Grant
• 1982874

• References
• Source

• Patent Number

  1,982,874

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1934
  90 years ago

• CPC

  • B21C37/18 - conical tubes
  • Y10S29/041 - Taper tube making
  • Y10T29/49334 - Utilizing hollow tube blank

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working