3457628

Information

• Patent Grant
• 3457628

• References
• Source

• Patent Number

  3,457,628

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1969
  55 years ago

• CPC

  • E01B31/08 - Bending
  • E01B9/46 - by clamps
  • E01C9/04 - Pavings for railroad level-crossings
  • Y10T29/49863 - with prestressing of part
  • Y10T29/49922 - by bending over projecting prongs

• US Classifications

  • 029 - Metal working