1958447

Information

• Patent Grant
• 1958447

• References
• Source

• Patent Number

  1,958,447

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1934
  90 years ago

• CPC

  • B21D9/14 - Wrinkle-bending
  • Y10T29/49444 - Elbow or L-shaped fitting making

• US Classifications

  • 219 - Electric heating
  • 029 - Metal working
  • 072 - Metal deforming
  • 138 - Pipes and tubular conduits