Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841594 | Cordless vacuum cleaner with power brush | Burton E. Gerke, Jr., Michael E. Bitzel, Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more | 1989-06-27 |
| 4835409 | Corded/cordless dual-mode power-operated device | Pradeep M. Bhagwat, Richard T. Walter | 1989-05-30 |
| 4835410 | Dual-mode corded/cordless system for power-operated devices | Pradeep M. Bhagwat, Richard T. Walter | 1989-05-30 |