Matches 551 - 600 out of 614 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >
Match Document Document Title
3531211 OPTICAL SYSTEM AND METHOD FOR CYLINDRICAL CUVETTES  
3529896 FLOW CELL IMMERSED IN A FLUID HAVING THE SAME REFRACTIVE INDEX AS THE FLOW CELL  
3519353 METHOD AND APPARATUS FOR DETERMINING PARTICLE SIZE DISTRIBUTION IN DISCRETE SOLIDS INCLUDING AN ELUTRIATION TUBE  
3518010 COLORIMETER  
3518009 COLORIMETER FLOW CELL  
3516284 LEAK DETECTOR  
3512163 APPARATUS FOR DETERMINING THE DENSITY OF FLOWING SAMPLES INCLUDING A PRIMARY AND SECONDARY RECORDER  
3504216 RESONANCE LAMP FOR ATOMIC ABSORPTION SPECTROSCOPY  
3481707 APPARATUS FOR AUTOMATIC COLORIMETRIC TITRATION  
3460124 SMOKE DETECTOR  
3448277 PHOTOELECTRIC ABSORPTION MEASURER HAVING PLUNGER FOR ENCLOSING VARIABLE BEAM PATH LENGTHS  
3446558 METHOD FOR MEASURING THE CHARACTERISTICS OF A GAS  
3442623 METHOD OF DETERMINING THE FAT CONTENT OF MILK AND RELATED PRODUCTS  
3436188 APPARATUS AND METHOD FOR DETECTION OF ALIPHATIC HYDROCARBON IN WATER  
3433964 PHOTOELECTROSTATIC FLUID ANALYZER  
3419333 Runway visual range computer system  
3415997 Radiation sensitive ampoule testing apparatus and method  
3412570 Radiation sensitive system for detecting refrigerant leaks  
3382762 Smoke detecting device  
3381135 Density measuring system having optical wedge to vary length of light path  
3333107 Optical analyzing apparatus having rectilinear light source and flattened-ellipse shaped fluid cell  
3322957 Device with photoelectric failure alarm  
3320804 Optical fluid flowmeter  
3307447 Fluid cell with jet inlet directed toward window  
3299275 Measuring surface temperatures of ablating materials with thermocouple and photocell  
3276004 Apparatus for detecting gas  
3251999 Photoelectric system for measuring the density of smoke  
3245158 Sonic reading device  
3243721 Temperature controlled filter gas cell in gas cell frequency standard  
3229098 Light-beam microphone and method  
3215849 Spectrophotometer with movable cuvette unit to isolate a single wavelength  
3197644 Photosensitive apparatus for measurement of color density  
3161769 Ultraviolet spectrometer with means to change the length of the optical path in the fluent material  
3150360 Flowmeter alarm  
3149236 Atomic battery and test instrument  
3117233 Filter cake thickness detector for filtering apparatus  
3107529 Thermoscope  
3094049 Xerographic developer measuring apparatus  
3080789 Flow cells  
3064135 Method and apparatus for inspecting multiple sheet glazing units  
3060318 Method and apparatus for the testing of fluids  
3035481 Cuvette oximeter  
3025962 Protective devices for septic tanks  
3025405 High sensitivity control device  
2991688 Optical comparator unit  
2978951 Method and system of color monitoring  
2978067 Actuating means for expansible filters  
2977479 Detector for carboniferous gas  
2966299 Apparatus for counting a number of regions in a scanning field  
2921184 System for signaling by light impulses  
Matches 551 - 600 out of 614 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >