2150890

Information

• Patent Grant
• 2150890

• References
• Source

• Patent Number

  2,150,890

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1939
  85 years ago

• CPC

  • B21D13/02 - by pressing
  • B21D22/027 - for flattening the ends of corrugated sheets

• US Classifications

  • 072 - Metal deforming