3903513

Information

• Patent Grant
• 3903513

• References
• Source

• Patent Number

  3,903,513

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1975
  49 years ago

• CPC

  • A61G5/1035 - manipulated by wheelchair user
  • A61G5/101 - of the parking brake type
  • A61G5/1018 - on the running surface
  • A61G2203/30 - characterised by sensor means
  • B62B5/0404 - automatic
  • B62B5/0409 - when user rises from seat
  • B62B5/0485 - by braking on the running surface

• US Classifications

  • 340 - Communications: electrical