3474570

Information

• Patent Grant
• 3474570

• References
• Source

• Patent Number

  3,474,570

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • E05D13/1238 - specially adapted for overhead wings
  • E05D13/1215 - specially adapted for overhead wings
  • F03G1/00 - Spring-motor
  • E05Y2900/106 - for garages
  • F03G2730/01 - Spring motors with spiral springs

• US Classifications

  • 049 - Movable or removable closures