Things I Have Invented

United States Patents Issued
For a while, I was in a creative stage in my life. During this time I
invented several devices for which I was awarded the following U.S. patents.
- #4,132,928 (January 2, 1979) - Device for Identifying Waveforms in a
Multiple Oscilloscope Display.
- #4,220,161 (September 2, 1980) - Perturbation Device for the Measurement of
Airway Resistance.
- #4,327,361 (April 27, 1982) - Gas Alarm.
© 1995, Howard M. Berlin.
November 30, 1995