177657

Information

• Patent Grant
• 177657

• References
• Source

• Patent Number

  177,657

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1876
  148 years ago

• CPC

  • E06B3/7009 - Door leaves with two similar parts placed one above the other, pivoting separately

• US Classifications

  • 160 - Flexible or portable closure, partition, or panel