3644611

Information

• Patent Grant
• 3644611

• References
• Source

• Patent Number

  3,644,611

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • B28B7/0094 - Moulds for concrete test samples
  • B28B7/342 - which are at least partially destroyed
  • E04G13/021 - for circular columns

• US Classifications

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