4. Apparel
  5. Head coverings

Gwen V. Janssen

Inventor

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

Details

Inventor

active

Emergency sound detector device

Communications: electrical – Selective – Having indication or alarm
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hearing aid headband support

Apparel – Head coverings
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hearing aid retention apparatus

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hearing aid retention device

Acoustics – Anatomic or prosthetic relation – Ear and mouth
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

Gwen V. Janssen does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-67631

  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