2152303

Information

• Patent Grant
• 2152303

• References
• Source

• Patent Number

  2,152,303

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1939
  85 years ago

• CPC

  • G01D15/32 - for circular charts
  • G01D15/28 - Holding means for recording surfaces Guiding means for recording surfaces Exchanging means for recording surfaces
  • G01D15/34 - Recording surfaces

• US Classifications

  • 346 - Recorders