1972837

Information

• Patent Grant
• 1972837

• References
• Source

• Patent Number

  1,972,837

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1934
  90 years ago

• CPC

  • B41B11/88 - Pumps Stop-motions or safety devices therefor

• US Classifications

  • 092 - Expansible chamber devices
  • 164 - Metal founding