| 1958 ROBB Walking Aid Trestle Type ENNA Patent 33268 |
| 1981 MEADOWS Tennis Ball Serving Aid Patent 46504 |
| 1946 MAX GRABOVSKY Aid To Swimmers Patent Print |
| 1957 SHOFI Swimmers Aid Ornamental Design Patent 32160 |
| 1967 ASTRO OPTICS INC Navigational Aid Patent |
| 1998 JONES FENLEIGH Drawing Aid INVICTA Patent 38529 |
| 1958 JOHNSON Hearing Aid Casing MAICO Patent 33261 |
| 1959 PRATT Golf Swing Training Aid Patent Print |
| 1961 PURSLEY MARVIN Archer'S Aid Patent Print |
| 1963 MARTIN ARTHUR Swimming Aid Patent Print Art |
| 1953 NEWMARK Teething Aid PROGRESSIVE Patent 33174 |
| 1962 YAMASAKI Clip On Hearing Aid BELTONE Patent 33371 |
| 1963 CICCOTELLI STEPHEN Swimming Aid Patent |
| 1965 GEIB Design Hearing Aid DAHLBERG Patent 33425 |
| 1985 KLEIN Design Hand Grip Aid Golf Patent 46419 |
| 1966 AID CORP Hold Down Device Patent Print Art |
| 1960 BOLDT Design Hearing Aid RADIO Patent 33293 |
| 1942 AID MFG COMPANY Needle Threader Patent |
| 1969 GRANGAARD Spelling Reading Aid Game Patent |
| 1931 POLIN Audiophone Hearing Aid Design Patent 9049 |