3857433

Information

• Patent Grant
• 3857433

• References
• Source

• Patent Number

  3,857,433

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • E06B9/302 - without ladder-tape
  • E06B9/0669 - stored in a zig-zag arrangement
  • E06B9/322 - Details of operating devices

• US Classifications

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