2428173

Information

• Patent Grant
• 2428173

• References
• Source

• Patent Number

  2,428,173

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1947
  77 years ago

• CPC

  • B21D11/085 - by locally stretching or upsetting

• US Classifications

  • 072 - Metal deforming
  • 333 - Wave transmission lines and networks