Catalog: NTIS Database Search Guide | |
| categories the ntis database search guide 35 99-chemistry 990-general 99a- ... -electromechanical devices 49d-electron tubes 49e-optoelectronic devices systems 49f ... | |
| all categories the ntis database search guide 40 civil engineering construction ... devices 49c electron tubes 49d electronic resistive capacitive ... | |
| descriptions the ntis database search guide 50 for detection techniques applied to ... breakers electric fuses 49d-electron tubes all electron tubes except those in 49e ... display systems phototubes image tubes cathode ray tubes electroluminescent ... | |
| descriptions the ntis database search guide 52 68e-pesticides pollution control ... and electromechanical devices electron tubes optoelectronic devices power and signal ... | |
| descriptions the ntis database search guide 54 94-industrial mechanical ... bearings mechanical elements pipes tubes levers cams springs mechanical joints ... | |
| descriptions the ntis database search guide 55 41-manufacturing technology 410- ... includes mechanical elements pipes tubes levers cams springs clutches gears ... | |
| the ntis database search guide ntis subject categories numerical ... includes mechanical elements pipes tubes levers cams springs clutches gears ... | |
| descriptions the ntis database search guide 71 48c-natural resource surveys use of ... breakers electric fuses 49d-electron tubes all electron tubes except those in 49e ... display systems phototubes image tubes cathode ray tubes electroluminescent ... | |
| descriptions the ntis database search guide 83 90-government inventions for ... and electromechanical devices electron tubes optoelectronic devices power and signal ... | |
| descriptions the ntis database search guide 84 91h-regional administration ... bearings mechanical elements pipes tubes levers cams springs mechanical joints ... | |
