3829945

Information

• Patent Grant
• 3829945

• References
• Source

• Patent Number

  3,829,945

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1974
  50 years ago

• CPC

  • B21D53/04 - of sheet metal
  • B21D22/027 - for flattening the ends of corrugated sheets
  • F28D9/0025 - the conduits being formed by zig-zag bend plates
  • Y10T29/4935 - Heat exchanger or boiler making

• US Classifications

  • 029 - Metal working
  • 165 - Heat exchange