1644774

Information

• Patent Grant
• 1644774

• References
• Source

• Patent Number

  1,644,774

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1927
  97 years ago

• CPC

  • B61K13/04 - Passenger-warning devices attached to vehicles Safety devices for preventing accidents to passengers when entering or leaving vehicles

• US Classifications

  • 040 - Card, picture, or sign exhibiting