4. Telephonic communications
  5. Audio message storage, retrieval, or synthesis

Charles R. Walden Jr.

Inventor

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

Details

Inventor

active

Automated call filter

Telephonic communications – Audio message storage – retrieval – or synthesis
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Detection of single-frequency signals

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
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

Charles R. Walden Jr. does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-1975941

  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