3473604

Information

• Patent Grant
• 3473604

• References
• Source

• Patent Number

  3,473,604

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1969
  55 years ago

• CPC

  • G06K13/067 - Checking presence, absence, correct position, or moving status of cards
  • F28D9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
  • F28D9/0031 - the conduits for one heat-exchange medium being formed by paired plates touching each other
  • F28F1/06 - crimped or corrugated in cross-section
  • F28F3/083 - capable of being taken apart
  • F28F3/10 - Arrangements for sealing the margins
  • F28F9/02 - Header boxes End plates
  • F28F9/0221 - Header boxes or end plates formed by stacked elements
  • Y10S165/387 - including side-edge seal or edge spacer bar

• US Classifications

  • 165 - Heat exchange