1975821

Information

• Patent Grant
• 1975821

• References
• Source

• Patent Number

  1,975,821

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1934
  90 years ago

• CPC

  • C08K5/101 - of monocarboxylic acids
  • F16H57/10 - Braking arrangements
  • H01H71/443 - with dash-pot
  • H01H83/12 - operated by voltage falling below a predetermined value

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 246 - Railway switches and signals