1528136

Information

• Patent Grant
• 1528136

• References
• Source

• Patent Number

  1,528,136

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1925
  99 years ago

• CPC

  • G09F19/04 - operated by the opening or closing of doors
  • Y10S40/907 - Out-to-lunch

• US Classifications

  • 040 - Card, picture, or sign exhibiting