1806920

Information

• Patent Grant
• 1806920

• References
• Source

• Patent Number

  1,806,920

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1931
  94 years ago

• CPC

  • B28B21/80 - adapted to centrifugal or rotational moulding
  • Y10S118/10 - Pipe and tube inside

• US Classifications

  • 427 - Coating processes
  • 118 - Coating apparatus
  • 138 - Pipes and tubular conduits