4. Boots, shoes, and leggings

David Mark Johnson

Inventor

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

Details

Inventor

active

Abrasive cutting element and drill bit

Boring or penetrating the earth – Bit or bit element – Impact or percussion type
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Multiply and accumulate circuit

Boots – shoes – and leggings
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Polycrystalline diamond compact PDC cutter with improved cutting

Abrading – Rigid tool
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Polycrystalline diamond cutting element

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Polycrystalline diamond cutting element with diamond ridge patte

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
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

David Mark Johnson does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-345650

  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