2020348

Information

• Patent Grant
• 2020348

• References
• Source

• Patent Number

  2,020,348

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1935
  89 years ago

• CPC

  • B21D53/38 - locksmith's goods
  • Y10T29/49833 - Punching, piercing or reaming part by surface of second part
  • Y10T29/49908 - Joining by deforming
  • Y10T29/49922 - by bending over projecting prongs
  • Y10T29/49938 - Radially expanding part in cavity, aperture, or hollow body

• US Classifications

  • 029 - Metal working