1728168

Information

• Patent Grant
• 1728168

• References
• Source

• Patent Number

  1,728,168

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1929
  95 years ago

• CPC

  • B21C37/154 - Making multi-wall tubes
  • Y10S76/04 - Chromium
  • Y10T29/49885 - with coating before or during assembling
  • Y10T29/49888 - Subsequently coating

• US Classifications

  • 029 - Metal working
  • 076 - Metal tools and implements, making
  • 138 - Pipes and tubular conduits
  • 165 - Heat exchange
  • 464 - Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts