3638236

Information

• Patent Grant
• 3638236

• References
• Source

• Patent Number

  3,638,236

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1972
  52 years ago

• CPC

  • G01D15/32 - for circular charts

• US Classifications

  • 346 - Recorders
  • 221 - Article dispensing