1817757

Information

• Patent Grant
• 1817757

• References
• Source

• Patent Number

  1,817,757

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1931
  93 years ago

• CPC

  • E04G11/46 - of hat-like or trough-like shape encasing a rib or the section between two ribs or encasing one rib and its adjacent flat floor or ceiling section
  • Y10S425/106 - Chamber

• US Classifications

  • 249 - Static molds
  • 425 - Plastic article or earthenware shaping or treating: apparatus