1990909

Information

• Patent Grant
• 1990909

• References
• Source

• Patent Number

  1,990,909

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1935
  90 years ago

• CPC

  • B63B19/14 - Hatch covers
  • B63B43/32 - of non-sliding type

• US Classifications

  • 114 - Ships
  • 404 - Road structure, process, or apparatus