4. Railway rolling stock
  5. Special car bodies
  6. Sleeping

Keith J. Hallam

Inventor

Rate now
  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Inventor

active

Aluminum hopper car with cast collars interconnecting intersecti

Railway rolling stock – Special car bodies – Dumping
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Car coupling arrangement for railway passenger cars

Railway draft appliances – Cushioned – Springs
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Combination door and emergency stairway exit

Railway rolling stock – Special car bodies – Passenger
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Curved hopper car roof

Static structures (e.g. – buildings) – Railroad car roof construction
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Headrest ladder

Railway rolling stock – Special car bodies – Sleeping
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Keith J. Hallam does not yet have a rating. At this time, there are no reviews or comments for this inventor.

If you have personal experience with Keith J. Hallam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keith J. Hallam will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-P-906519

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.

Canada

 Charities
 Companies
 MP Candidates
 Patents
 Employee Salary Disclosure

World

 Places of the World
 Scientific Papers

United States

 Banks
 Companies
 Counties
 Patents
 Employee Salary Disclosure