3643223

Information

• Patent Grant
• 3643223

• References
• Source

• Patent Number

  3,643,223

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  52 years ago

• CPC

  • H03K19/01831 - with at least one differential stage
  • H03K5/026 - with a bidirectional operation
  • H04L5/16 - Half-duplex systems Simplex-duplex switching Transmission of break signals non automatically inverting the direction of transmission

• US Classifications

  • 710 - Electrical computers and digital data processing systems: input/output