1788284

Information

• Patent Grant
• 1788284

• References
• Source

• Patent Number

  1,788,284

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1931
  94 years ago

• CPC

  • G06C7/04 - Interlocking devices
  • G06C21/04 - Conditional arrangements for controlling subsequent operating functions

• US Classifications

  • 235 - Registers