2077474

Information

• Patent Grant
• 2077474

• References
• Source

• Patent Number

  2,077,474

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1937
  88 years ago

• CPC

  • B28D1/325 - for making holes in easily splittable working materials
  • B28D1/223 - Hand-held or hand-operated tools for shearing or cleaving
  • Y10T83/814 - Punch and shear

• US Classifications

  • 083 - Cutting
  • 125 - Stone working