4. Photocopying
  5. Projection printing and copying cameras
  6. Detailed holder for original

Donald A. Robertson

Inventor

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

Details

Inventor

active

Copying machine

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Copying machine

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Copying machine

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Milling cutter

Chucks or sockets – Radially reciprocating jaws
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Sliding platen cover apparatus

Photocopying – Projection printing and copying cameras – Detailed holder for original
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

Donald A. Robertson does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-492086

  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