Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886050 | Device permitting a user to simulate crawling motions to improve movement of the truncal muscles and spine | Robson L. Splane, Jr., John A. Drusch, III | 1989-12-12 |
| 4858918 | Device for providing enhanced movement of a person's truncal muscles and spine | Robson L. Splane, Jr., John A. Drusch, III | 1989-08-22 |
| 4846465 | Method for manipulation of a person's truncal muscles and spine | Robson L. Splane, Jr., John A. Drusch, III | 1989-07-11 |
| 4799475 | Device permitting a user to simulate crawling motions to improve movement of the truncal muscles and spine | Robson L. Splane, Jr., John A. Drusch, III | 1989-01-24 |