1871516

Information

• Patent Grant
• 1871516

• References
• Source

• Patent Number

  1,871,516

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1932
  92 years ago

• CPC

  • E21F5/10 - Devices for rock dusting

• US Classifications

  • 406 - Conveyors: fluid current