4. Electricity: circuit makers and breakers
  5. Multiple circuit control
  6. Multiple switch

Donald E. Allen

Inventor

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

Details

Inventor

active

Continuous touch keyboard

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board having multiple-character – multiple-movement keys
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Filter

Etching a substrate: processes – Masking of a substrate using material resistant to an etchant
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Finger operated switching apparatus

Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Finger operated switching apparatus

Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method of fabricating air supported crossovers

Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
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 E. Allen 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 E. Allen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Donald E. Allen will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-P-930648

  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