4. Typewriting machines
  5. Key-board or key lever-actuating mechanism

William H. Roylance

Assignee

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

Details

Assignee

active

No affiliations

Compressible/expandable keyboard with adjustable key spacing

Typewriting machines – Key-board or key lever-actuating mechanism
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Compressible/expandable keyboard with adjustable key spacing

Typewriting machines – Key-board or key lever-actuating mechanism
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Process for preventing inadvertent actuation of controls

Electric lamp and discharge devices: systems – Time-controlled
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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

William H. Roylance does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-602428

  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