2975490

Information

• Patent Grant
• 2975490

• References
• Source

• Patent Number

  2,975,490

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1961
  63 years ago

• CPC

  • B61D19/002 - specially adapted for grain cars
  • B61D19/009 - both sliding and plugging, (
  • E05D15/1007 - specially adapted for use in railway-cars or mass transit vehicles
  • E05Y2900/51 - for railway cars or mass transit vehicles
  • Y10T292/0847 - Screw

• US Classifications

  • 049 - Movable or removable closures
  • 292 - Closure fasteners