1971775

Information

• Patent Grant
• 1971775

• References
• Source

• Patent Number

  1,971,775

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1934
  90 years ago

• CPC

  • F01B25/00 - Regulating, controlling, or safety means
  • F01B2250/009 - Condensor pumps for steam engines

• US Classifications

  • 417 - Pumps
  • 066 - Textiles: knitting
  • 165 - Heat exchange