3612812

Information

• Patent Grant
• 3612812

• References
• Source

• Patent Number

  3,612,812

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • B21K1/62 - special rivets
  • B23K11/0013 - welding for reasons other than joining
  • Y10T29/49211 - of fused material

• US Classifications

  • 219 - Electric heating
  • 029 - Metal working