2688175

Information

• Patent Grant
• 2688175

• References
• Source

• Patent Number

  2,688,175

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1954
  70 years ago

• CPC

  • B28B7/46 - for humidifying or dehumidifying
  • B28B7/085 - for making double wall panels
  • B28B23/028 - for double - wall articles

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 164 - Metal founding
  • 425 - Plastic article or earthenware shaping or treating: apparatus