Resources Contact Us Home
Browse by Category: Main > Household
Class Information
Number: 4/210
Name: Baths, closets, sinks, and spittoons > Ventilation > Railway car
Description: Devices for ventilating railway-car closets.

Patents under this class:

Patent Number Title Of Patent Date Issued
6247191 Locomotive sanitation apparatus and method of protecting the same from freezing Jun. 19, 2001
5630233 Vehicle toilet vent apparatus May. 20, 1997
5369811 Vacuum toilet system with odor filter Dec. 6, 1994

  Recently Added Patents
Method of using N-thio compounds for oligonucleotide synthesis
Model matching for trace link generation
Method of targeting hydrophobic drugs to vascular lesions
Dynamic facsimile transcoding in a unified messaging platform
Systems and methods for parameter adaptation
Particulate filter with hydrogen sulphide block function
Capacitance sensing
  Randomly Featured Patents
Method of and apparatus for the cooling of underground mine shafts and/or machinery installed therein
Exploration-sampling drilling system
Hydraulic pump jack
Apparatus for passive damping of a structure
Video signal recording and playback apparatus having varied-speed playback capability
Totalizator terminal, winning horse picking method and program
Solar cell with structured gridline endpoints and vertices
Motor drive apparatus and method of controlling the same
Abdominal training apparatus