3452424

Information

• Patent Grant
• 3452424

• References
• Source

• Patent Number

  3,452,424

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1969
  55 years ago

• CPC

  • B23K13/046 - for tubes
  • B21C37/185 - starting from sheet material

• US Classifications

  • 228 - Metal fusion bonding
  • 219 - Electric heating