3825937

Information

• Patent Grant
• 3825937

• References
• Source

• Patent Number

  3,825,937

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1974
  50 years ago

• CPC

  • G01D15/28 - Holding means for recording surfaces Guiding means for recording surfaces Exchanging means for recording surfaces
  • G01D15/24 - Drives for recording elements and surfaces not covered by G01D5/00
  • G07C1/08 - wherein the time is indicated by marking an element

• US Classifications

  • 346 - Recorders
  • 101 - Printing
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets