3442991

Information

• Patent Grant
• 3442991

• References
• Source

• Patent Number

  3,442,991

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1969
  55 years ago

• CPC

  • B28B1/503 - Moulds therefor
  • E04B2/30 - using elements having specially designed means for stabilising the position Spacers for cavity walls

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 249 - Static molds