1662717

Information

• Patent Grant
• 1662717

• References
• Source

• Patent Number

  1,662,717

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1928
  96 years ago

• CPC

  • B31B21/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from sheets or blanks
  • B31B2219/9041 - by making paper transparent or translucent, by applying transparent melt
  • B31B2221/102 - obtained from essentially rectangular sheets

• US Classifications

  • 427 - Coating processes