1661970

Information

• Patent Grant
• 1661970

• References
• Source

• Patent Number

  1,661,970

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1928
  96 years ago

• CPC

  • B23K37/0535 - longitudinal pipe seam alignment clamps

• US Classifications

  • 219 - Electric heating
  • 269 - Work holders