2139682

Information

• Patent Grant
• 2139682

• References
• Source

• Patent Number

  2,139,682

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1938
  87 years ago

• CPC

  • B21D51/2676 - Cans or tins having longitudinal or helical seams
  • B21D51/2646 - Of particular non cylindrical shape
  • B23D21/14 - cutting inside the tube
  • Y10S29/033 - Scoring with other step
  • Y10T83/392 - One tool [either internal or external] having compound motion

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working
  • 083 - Cutting