Electronic way to rapidly erase a blackboard

B - Operations – Transporting – 43 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

15/15

B43L 21/00 (2006.01)

Patent

CA 1059272

ABSTRACT. The advantages offered by the invention hereby applied for and enti- tled "An electronic way to rapidly erase a black-board" are the fol- lowing; 1)-It makes it possible to erase a blck-board mechanically instead of manually, which implies a considerable saving of time for the per- son who is using it and... 2)- It represents a large saving of funds for the School, Commission, University, Institution etc, which presently must hire a special staff whose duty is to make the turn of all the class rooms, in order to erase, at the end of each school day, all the black-boards.

290411

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Electronic way to rapidly erase a blackboard does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic way to rapidly erase a blackboard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic way to rapidly erase a blackboard will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-812529

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.