1377968

Information

• Patent Grant
• 1377968

• References
• Source

• Patent Number

  1,377,968

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1921
  103 years ago

• CPC

  • B27H3/04 - Manufacture of barrel heads or casings
  • B27C7/005 - by means of a rotating tool

• US Classifications

  • 147 - Coopering