4. Education and demonstration
  5. Means for demonstrating apparatus, product, or surface...
  6. Chalkboard or equivalent means having easily erasable surface

Janice Z. Olsen

Inventor

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

Details

Inventor

active

Pre-writing teaching aid and method to assist beginning...

Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Pre-writing teaching aid and method to assist beginning...

Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Two-nib crayon and method of manufacture

Coating implements with material supply – Plural exposed tools each with individual supply
Reexamination Certificate

  [ 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

Janice Z. Olsen does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-2875838

  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