1742515

Information

• Patent Grant
• 1742515

• References
• Source

• Patent Number

  1,742,515

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1930
  94 years ago

• CPC

  • C04B38/0605 - by sublimating
  • Y10S264/63 - Processes of molding porous blocks

• US Classifications

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