3564896

Information

• Patent Grant
• 3564896

• References
• Source

• Patent Number

  3,564,896

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1971
  53 years ago

• CPC

  • B21K1/063 - hollow
  • B21K1/12 - of specially-shaped cross-section
  • B21K1/305 - helical
  • Y10S72/713 - Method of making vehicle power transmitting shaft

• US Classifications

  • 072 - Metal deforming