2539138

Information

• Patent Grant
• 2539138

• References
• Source

• Patent Number

  2,539,138

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1951
  74 years ago

• CPC

  • G06M3/024 - by adding
  • G04C23/16 - acting only at one preselected time or during one adjustable time interval

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 235 - Registers
  • 340 - Communications: electrical
  • 968 - Horology