1703437

Information

• Patent Grant
• 1703437

• References
• Source

• Patent Number

  1,703,437

• Date Filed

  Not available

• Date Issued

  Tuesday, February 26, 1929
  96 years ago

• CPC

  • B63J2/10 - Ventilating-shaft Air-scoops
  • Y10S454/905 - Black out means

• US Classifications

  • 454 - Ventilation