3612731

Information

• Patent Grant
• 3612731

• References
• Source

• Patent Number

  3,612,731

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • F04B45/022 - with two or more bellows in parallel
  • Y10S417/903 - Treadle operated

• US Classifications

  • 417 - Pumps