Matches 701 - 750 out of 848 < 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >
Match Document Document Title
3413855 Apparatus for measuring and indicating fluid pressure across a fluid restriction  
3412786 Fouling degree computer for heat exchanger cleaner  
3408858 Method and apparatus for testing cigarettes and the like  
3405553 Process and apparatus for determining the permeability of solids  
3401554 Closed-volume permeameter  
3395570 Method and apparatus for testing cigarettes or the like  
3392573 Aerosol filter test device  
3388586 Porosimeter  
3386280 Air cleaner tester  
3386281 Apparatus for testing cigarettes and the like  
3380292 Distribution of fluids in a medium  
3375720 Differential pressure indicator  
3375569 Method of manufacture of structures having controlled porosity  
3371519 Porosimeter  
3371518 Device for continuously measuring porosity  
3371520 Electrical porosimeter  
3352146 Method and means for testing the gas permeability and closure leakage of containers  
3348395 Specimen mounting device for porosity determination apparatus  
3345880 Apparatus for measurement of physical characteristics of solid bodies  
3336793 Filter test method and apparatus  
3335787 Automatic mold testing apparatus  
3329006 Apparatus for the determination of coefficients of permeability and electroosmotic permeability  
3324633 Air filter control  
3325010 Filter clogging indicator  
3324712 Method of and apparatus for evaluating lost circulation materials  
3320792 Air filter tester  
3309912 Porosity data apparatus  
3301043 Method and means for the experimental determination of the permeability of foils to gas  
3301042 Method of determination of the characteristics of porous barriers and instrument forthe practical application of said method  
3296869 Method for determining the specific surface of non-uniformly shaped substances  
3293431 Fluorescent tracer technique for detecting defects in air permeable bodies  
3286509 Apparatus for measuring water vapor permeability  
3286508 Signal apparatus  
3281596 Method of detecting mercury vapor by collecting the mercury and thereafter analyzing the collected mercury by ultraviolet absorption analysis  
3276248 Method and apparatus for detecting perforated screens  
3271999 Apparatus for determining the silting properties of liquids containing minute suspended particles  
3266295 Manufacture of hollow articles  
3262319 Method and apparatus for obtaining data for determining surface area and pore volume  
3258117 Automatic means for testing and assorting cigarettes according to porosity  
3256732 Methods and devices for determining the mean radius of pores in microporous barriers  
3254526 Method and apparatus of testing fluidimpermeable films for holes  
3255122 Control of surface area in a catalyst manufacturing process  
3251218 Apparatus for pressure testing the porosity and strength of cartons and containers  
3248930 Apparatus for testing the permeability of materials  
3241357 Permeameter  
3237444 Method and apparatus for testing the integrity of, and resistance to flow through hollow articles, such as cigarettes and the like  
3216242 Soil-testing apparatus  
3208267 Contaminant measurement  
3204449 Testing of cigarette filters  
3203252 Means and method of catalyst analysis  
Matches 701 - 750 out of 848 < 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >