1421154

Information

• Patent Grant
• 1421154

• References
• Source

• Patent Number

  1,421,154

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1922
  102 years ago

• CPC

  • E05F1/002 - controlled by automatically acting means
  • E04D13/0351 - the parts pivoting about a fixed axis
  • E05Y2900/154 - Skylights

• US Classifications

  • 052 - Static structures
  • 049 - Movable or removable closures