4. Internal-combustion engines
  5. Charge forming device
  6. Crankcase vapor used with combustible mixture

Walter Trefz

Inventor

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

Details

Inventor

active

Air intake filter with cyclone separator stage and dust collecti

Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Crankcase ventilator for internal combustion engines

Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Filter insert for air filters used in a dust-filled environment

Gas separation – Two or more separators – Plies or layers of different characteristics or orientation
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

Walter Trefz does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-986837

  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