2474660

Information

• Patent Grant
• 2474660

• References
• Source

• Patent Number

  2,474,660

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1949
  75 years ago

• CPC

  • B28B21/72 - Producing multilayer tubes
  • Y10S425/119 - Perforated or porous

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 052 - Static structures
  • 425 - Plastic article or earthenware shaping or treating: apparatus