2687947

Information

• Patent Grant
• 2687947

• References
• Source

• Patent Number

  2,687,947

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1954
  70 years ago

• CPC

  • A47J43/082 - for machines with tools driven from the upper side
  • C01B17/506 - of calcium sulfates
  • C04B7/04 - using raw materials containing gypsum
  • F16H55/566 - only adjustable when pulley is stationary

• US Classifications

  • 423 - Chemistry of inorganic compounds