1837686

Information

• Patent Grant
• 1837686

• References
• Source

• Patent Number

  1,837,686

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1931
  93 years ago

• CPC

  • D06P1/56 - Condensation products or precondensation products prepared with aldehydes
  • B65G19/16 - the impellers being elements having an area substantially smaller than that of the conduit cross-section
  • B65G19/26 - pivotal
  • E21F13/061 - Chutes and braking conveyors for average and steep slopes, adapted for mining purposes
  • Y10S8/917 - Wool or silk

• US Classifications

  • 008 - Bleaching and dyeing