1934979

Information

• Patent Grant
• 1934979

• References
• Source

• Patent Number

  1,934,979

• Date Filed

  Not available

• Date Issued

  Tuesday, November 14, 1933
  91 years ago

• CPC

  • B21D1/06 - Removing local distortions
  • B21D1/10 - of specific articles made from sheet metal
  • B25D9/08 - comprising a built-in air compressor
  • B25D9/22 - involving a rotary-type slide valve
  • B25D2250/045 - Cams used in percussive tools

• US Classifications

  • 091 - Motors: expansible chamber type
  • 173 - Tool driving or impacting