3763916

Information

• Patent Grant
• 3763916

• References
• Source

• Patent Number

  3,763,916

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1973
  51 years ago

• CPC

  • E06B9/60 - Spring drums operated only by closure members
  • F03G1/00 - Spring-motor
  • F03G2730/03 - Spring motors with torsion springs

• US Classifications

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