2204897

Information

• Patent Grant
• 2204897

• References
• Source

• Patent Number

  2,204,897

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1940
  85 years ago

• CPC

  • G07F17/145 - for revolving doors or turnstiles
  • Y10T83/535 - Release of interlock controlled
  • Y10T83/8694 - With brake or blocking means

• US Classifications

  • 049 - Movable or removable closures
  • 083 - Cutting
  • 271 - Sheet feeding or delivering