1921996

Information

• Patent Grant
• 1921996

• References
• Source

• Patent Number

  1,921,996

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1933
  91 years ago

• CPC

  • A22C11/04 - with mechanically-operated piston moving to-and-fro

• US Classifications

  • 092 - Expansible chamber devices
  • 277 - Seal for a joint or juncture