2528545

Information

• Patent Grant
• 2528545

• References
• Source

• Patent Number

  2,528,545

• Date Filed

  Not available

• Date Issued

  Tuesday, November 7, 1950
  74 years ago

• CPC

  • H05G1/28 - Measuring or recording actual exposure time Counting number of exposures Measuring required exposure time

• US Classifications

  • 346 - Recorders
  • 200 - Electricity: circuit makers and breakers
  • 307 - Electrical transmission or interconnection systems