Patents
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Patents for 1991 (697)
09/1991
09/18/1991CN2084787U Shower using pressure cooker
09/18/1991CN2084786U Hanging type shower
09/18/1991CN1054536A Making method of sperm-increasing medicine
09/17/1991US5049661 Sulfonation of lignins
09/14/1991CA2012142A1 Apparatus and method for predicting physical and chemical properties of materials
09/11/1991CN2084708U Electronic ballast of fluorescent lamp
09/11/1991CN2084555U 礼品灯 Gift lights
09/11/1991CN2084552U 充电式手电筒 Flashlight
09/11/1991CN2084550U Full day light type lamp for rubber cutting
09/11/1991CN2084514U Ac stepless speed adjustable rock core drilling machine
09/11/1991CN2084310U Rubber air cushion bed for shoes adhesion
09/11/1991CN1054489A Method and apparatus for measuring rotational speed of enclosed rotor
09/11/1991CN1054480A Method and apparatus for periodically operated streaming burning of briquettes
09/11/1991CN1054367A Skin-cleaning cosmetics and productive process thereof
09/11/1991CN1013907B Leakage-current mutual-inductor
09/11/1991CN1013829B Preparation of cosmetics contg. racoon dog oil
09/10/1991US5047232 Sunscreen agent with water in oil emulsifier
09/07/1991CA2011677A1 Methods and apparatus for obtaining arterial blood samples
09/04/1991CN2084270U High frequency electronic ballast for gas discharge lamp
09/04/1991CN2084216U High intelligent audio receiver
09/04/1991CN2084152U Vertical type steam and water dual-purpose boiler with full burning layer
09/04/1991CN2084148U Lamp for lifesaving equipment
09/04/1991CN2084113U Energy saving foot valve
09/04/1991CN2083902U Electrothermic insulating bathing net
09/04/1991CN1054288A Hydraulic pressure hamrner
09/04/1991CN1054191A Medicinal preparation "yilitong"
09/04/1991CN1054187A Micro blood sampling needle
09/03/1991US5044984 Stackable connector assembly and bracket therefor
08/1991
08/29/1991CA2036820A1 Assembly table/selection table generation system
08/28/1991CN2083830U Low-pressure mercury fluorescent lamp power sources
08/28/1991CN2083690U Honeycomb shaped burner boiler
08/28/1991CN2083687U Colour changeable bulb
08/28/1991CN2083475U Disposable plastic anoscope
08/28/1991CN1054145A Power supply unit
08/28/1991CN1054011A Produing method of medicine for hypertension curing
08/28/1991CN1013640B Preparation method of burns drug
08/27/1991US5043434 Oleum sulfonation of lignins
08/27/1991US5043433 Oleum sulfonation of lignins
08/27/1991US5043432 Sulfonation of lignins
08/27/1991US5042635 Rapid coin acceptor
08/27/1991CA1288164C Financial data processing system
08/24/1991CA2033859A1 System and method for production scheduling
08/21/1991CN2083389U Power-saving safety electronic ballast
08/21/1991CN2083366U Microcomputerized audiofrequeney graphic instrument
08/21/1991CN2083363U Electronic cipher lock-control device of telephone set
08/21/1991CN2083347U Novel banana plug
08/21/1991CN2083245U Boiler capable of burning low-quality coal with fluidised bed
08/21/1991CN2083240U Multi-point colour lamp
08/21/1991CN2083239U New-type electronic traffic signal light
08/21/1991CN2083238U Automatic-tracking lighting device for steering of automotive vehicle
08/21/1991CN2083237U Emergency electric torch with someone
08/21/1991CN2083192U Electric automatic-propelling rock drilling tool
08/21/1991CN2083151U External thermal cycle alcohol recoverer
08/21/1991CN2083036U Blood-storage plunger-type hemospast
08/21/1991CN1053950A Tunnel-type burner of briquet
08/21/1991CN1053888A Beauty cream for removing freckle and pigmented spot
08/20/1991US5041775 Speed control for multitap induction motor
08/20/1991US5041281 Oil in water emulsion sunscreen composition
08/20/1991US5041023 Card edge connector
08/14/1991CN2082953U High-frequency electronic ballast
08/14/1991CN2082952U Fluorescent lamp electronic ballast with step by step current circuit
08/14/1991CN2082951U Electronic energy-saving transformer for neon lamp
08/14/1991CN2082920U No-loss speed regulating device for wound rotor type asynchronous motors
08/14/1991CN2082919U Easy speed regulation device for three-phase a.c. electric motor
08/14/1991CN2082904U Dual-purpose two-core socket
08/14/1991CN2082902U Solar electric source unit with reflecting intensifier
08/14/1991CN2082875U Paper card input instrument of chinese characters and language characters of the western countries and graphs
08/14/1991CN2082874U Automatic balance displaying instrument for goods delivery
08/14/1991CN2082809U Flexible connecting folding circular lamp
08/14/1991CN2082808U Reflecting spotlight
08/14/1991CN2082807U 眼镜式照明灯 Glasses style lighting
08/14/1991CN2082806U Lantern
08/14/1991CN2082805U Multipurpose discrete type torch
08/14/1991CN2082804U Multipurpose pocket flashlight
08/14/1991CN2082803U Torch capable of lighting both front and rear
08/14/1991CN2082774U Special-purpose open type absorption water valve under well for centrifugal pump
08/14/1991CN2082709U Top and bottom paper molded packing board in packing box of refrigerator
08/14/1991CN2082655U 液体静压导轨 Hydrostatic guide
08/14/1991CN2082603U Gun type cauterisation treatment instrument
08/14/1991CN2082591U Household screen type foldable shower bath cabinet
08/14/1991CN2082590U Bathtub warming-keeping cover
08/14/1991CN2082589U Multifunctional shower cover
08/09/1991CA2009700A1 Electronic calorie consumption guide
08/08/1991WO1991011390A1 Synthetic porous crystalline material its synthesis and use
08/07/1991CN2082510U Energy saving electrical ballast of high pressure sodium lamp
08/07/1991CN2082509U Multitaps outing electrical source of high frequency nonheat filament and lower pressure mercury fluorescent lamp
08/07/1991CN2082498U Portable type movable broadcast station with noncentre adress
08/07/1991CN2082473U End point contacted type and contacted cable connector with trapezoidal inclined plane at contacted end point
08/07/1991CN2082379U Heating apparatus with function of heat storage
08/07/1991CN2082330U Hydraulic sump
08/07/1991CN2082154U One-service blood sample collector
08/07/1991CN2082145U Treadle type double tube shower valve
08/07/1991CN2082144U Sealling type gas heating and showering device
08/07/1991CN2082143U 自动淋浴喷头 Automatic showerheads
08/07/1991CN2082140U Coal holder with flexiable claws
08/07/1991CN1053696A Self-learning intelligent co-ordinative controlling of urban traffic
08/07/1991CN1053680A Sonic touch detecting method for ultrasonic flaw detection
08/07/1991CN1053632A Blocking agent of single water glass used for stratum
08/06/1991US5037034 Mica delaminator
08/06/1991CA1287401C Method and apparatus for measuring relative heading changes in a vehicular onboard navigation system
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