1810988

Information

• Patent Grant
• 1810988

• References
• Source

• Patent Number

  1,810,988

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1931
  93 years ago

• CPC

  • B25D9/24 - involving a rocking-plate type valve

• US Classifications

  • 091 - Motors: expansible chamber type