4. Radiant energy
  5. Invisible radiation responsive nonelectric signalling
  6. Optical change type

Walter J. Chappas

Inventor

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

Details

Inventor

active

Apparatus and method for hardening metal by varying the...

Metallurgical apparatus – Means treating a continuum of work – With heating means
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus and method using fractionated irradiation to...

Radiant energy – Irradiation of objects or material
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus and method using irradiation to harden metal

Radiant energy – Irradiation of objects or material
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Color-matched, ambient-light visual comparator dosimeter

Radiant energy – Invisible radiation responsive nonelectric signalling – Optical change type
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 J. Chappas 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 J. Chappas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Walter J. Chappas will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-P-432270

  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