| 1968 BELL AEROSPACE CORP Hub Restraint Patent |
| 1964 BELL AEROSPACE CORP Task Trainer Patent |
| 1969 BELL AEROSPACE CORP Rotor Mounting Patent |
| 1943 BELL AIRCRAFT CORP Wing Construction Patent |
| 1960 BELL HELICOPTER CORP Rotor Hub Patent Print |
| 1965 BELL AEROSPACE CORP Rotor System Patent |
| 1944 BELL AIRCRAFT CORP Ordnance Patent Print |
| 1945 BELL AIRCRAFT CORP Ordnance Patent Print |
| 1944 BELL AIRCRAFT CORP Airplane Patent Print |
| 1964 BELL AEROSPACE CORP Servo Mechanism Patent |
| 1944 TROTTER JOHN Gun BELL AIRCRAFT CORP Patent |
| 1942 BELL AIRCRAFT CORP Antishimmy Device Patent |
| 1967 BELL AEROSPACE CORP Rotor Blade Patent |
| 1945 BELL AIRCRAFT CORP Antishimmy Device Patent |
| 1967 BELL AEROSPACE CORP Rotor System Patent |
| 1941 BELL AIRCRAFT CORP Control Column Patent |
| 1943 BELL AIRCRAFT CORP Adjusting Unit Patent |
| 1943 BELL AIRCRAFT CORP Ordnance Patent Print |
| 1969 BELL AEROSPACE CORP Rotor Blade Patent |
| 1946 BELL AIRCRAFT CORP Gun Mount Patent Print |
| 1943 BELL AIRCRAFT CORP Aircraft Patent Print |
| 1968 BELL AEROSPACE CORP Rotor Blade Patent |
| 1940 BELL AIRCRAFT CORP Control Unit Patent |
| 1962 BELL AEROSPACE CORP Propulsion Unit Patent |
| 1963 BELL AEROSPACE CORP Water Jet Engine Patent |
| 1941 BELL AIRCRAFT CORP Wing Beam Patent Print |
| 1962 BELL AEROSPACE CORP Space Belt Patent Print |
| 1945 BELL AIRCRAFT CORP Aircraft Patent Print |
| 1954 BELL AIRCRAFT CORP Airplane Patent Print |
| 1946 BELL AIRCRAFT CORP Ordnance Patent Print |
| 1963 BELL AEROSPACE CORP Propulsion Unit Patent |
| 1945 BELL AIRCRAFT CORP Gun Battery Patent Print |
| 1941 BELL AIRCRAFT CORP Pressed Wing Rib Patent |
| 1942 BELL AIRCRAFT CORP Propeller Fairing Patent |
| 1944 BELL AIRCRAFT CORP Aircraft Gearing Patent |
| 1964 BELL AEROSPACE CORP Rotor Patent Print Art |
| 1943 BELL AIRCRAFT CORP Airplane Patent Print |
| 1946 BELL AIRCRAFT CORP Airplane Patent Print |
| 1965 BELL AEROSPACE CORP Rotor Blade Patent |
| 1941 BELL AIRCRAFT CORP Hinged Mount Patent |