2905539

Information

• Patent Grant
• 2905539

• References
• Source

• Patent Number

  2,905,539

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1959
  65 years ago

• CPC

  • H05K3/061 - Etching masks
  • H05K3/068 - Apparatus for etching printed circuits
  • H05K2203/0557 - Non-printed masks
  • Y10S425/811 - Stencil

• US Classifications

  • 174 - Electricity: conductors and insulators
  • 216 - Etching a substrate: processes
  • 361 - Electricity: electrical systems and devices
  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 427 - Coating processes