3520964

Information

• Patent Grant
• 3520964

• References
• Source

• Patent Number

  3,520,964

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1970
  54 years ago

• CPC

  • B29C47/8865 - using vacuum
  • B29C47/0021 - Flat flexible articles

• US Classifications

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