| Patents for 1990 (564) |
|---|
| 09/08/1990 | CA2010867A1 Interactive multimedia presentation and communications system |
| 09/05/1990 | CN2061756U Electronic ballast of preheat fluorescent lamp |
| 09/05/1990 | CN2061755U Vehicle light for work at night |
| 09/05/1990 | CN2061711U Portable diskette signal collecting recorder |
| 09/05/1990 | CN2061648U Combustion chamber for grate-fired furnace |
| 09/05/1990 | CN2061641U Dual-purpose energy-seving table lamp |
| 09/05/1990 | CN2061445U High-frequency intellegent surgical knife |
| 09/05/1990 | CN2061436U Multipurpose water-temp. controllable shower |
| 09/05/1990 | CN1045193A Digital processor of micrograph |
| 09/05/1990 | CN1045118A Process for preparing oil-solubel plugging agent in drilling fluid |
| 09/05/1990 | CN1045034A Process for preparing chinese herbal mixture of burn |
| 09/05/1990 | CN1045032A Process for preparing plaster to suppress spur ("gu ci ting") |
| 09/05/1990 | CN1045030A Milk liquor for preventing oil staining of skin and process for refining same |
| 08/29/1990 | CN2061358U 电子镇流器 Electronic Ballast |
| 08/29/1990 | CN2061350U Timing and electronic stepless speed regulation device for ceiling fan |
| 08/29/1990 | CN2061304U Optical input device with coordinate vector mode |
| 08/29/1990 | CN2061244U Variable colour palace lantern |
| 08/29/1990 | CN2061243U Multipurpose flashlight |
| 08/29/1990 | CN2061208U Light gang drilling machine |
| 08/29/1990 | CN2061120U Bonding device of verticle bonding machine |
| 08/29/1990 | CN2061036U Rigid transmitting picture beam amniotic fluid endoscopic |
| 08/29/1990 | CN2061027U Curtain for shower bath |
| 08/29/1990 | CN2061026U Shower head |
| 08/29/1990 | CN2061025U Pressure cooker hot water shower |
| 08/29/1990 | CN1045008A Speed regulator for monophase ac capacitance-run motor |
| 08/29/1990 | CN1044907A Producing process of fast-dissolved embolism-eliminating pulvis |
| 08/29/1990 | CN1044906A Preparing process of snore-stopping medicine |
| 08/29/1990 | CN1044903A Deodorizing shoe powder |
| 08/29/1990 | CN1044902A Tooth-protecting paste |
| 08/29/1990 | CN1044901A Halitosis-eliminating toothpaste |
| 08/27/1990 | CA2010941A1 Marine propulsion device internal combustion engine |
| 08/22/1990 | CN2060906U Two stage control arrangement of general computer |
| 08/22/1990 | CN2060831U Inter-tooth planet differential gearing |
| 08/22/1990 | CN2060813U Multi-placement dust extractor for hidden hole drilling |
| 08/22/1990 | CN2060812U Impact and rotation type major diameter drilling machine |
| 08/22/1990 | CN2060811U Internal combustion rotary drill for rock |
| 08/22/1990 | CN2060723U Brittle rupture-proof plastic protucts with reinforcing ribs |
| 08/22/1990 | CN2060722U High strength long-life palstic film with longitude and latitude tape |
| 08/22/1990 | CN1044866A Microcomputerized auto power-factor compensating and controlling system |
| 08/22/1990 | CN1044759A Nine-function liquid |
| 08/22/1990 | CN1009319B Method and apparatus of digital phonemic tone conversion |
| 08/21/1990 | CA1272851A1 Paper diaper |
| 08/15/1990 | CN2060570U English-chinese and chinese-english electronic dictionary |
| 08/15/1990 | CN2060505U Double-layer fire grate back-burning type coal burner |
| 08/15/1990 | CN2060500U Dual function electric torch |
| 08/15/1990 | CN2060390U Three-layers cloth doubler |
| 08/15/1990 | CN2060331U High efficiency quick heating single flame head bathing heater |
| 08/15/1990 | CN2060330U Barrel type bathing device |
| 08/15/1990 | CN1044722A Digital image processor of infra-red thermal imaging instrument |
| 08/15/1990 | CN1044721A Card type multipurpose instrument |
| 08/15/1990 | CN1044593A Preparation method of rehabilitation agent for chronic obstructive disease of lung |
| 08/08/1990 | CN2060275U High-efficient low-voltage energy-saving electronic lamp |
| 08/08/1990 | CN2060197U Exchanging bulb cover for halogen lamp and filament lamp |
| 08/08/1990 | CN2060114U Sticking device of traversing doubling machine |
| 08/08/1990 | CN2060063U One time used asepsis blood sample gathering unit |
| 08/08/1990 | CN1044404A Prodn. of health-giving mud (traditional chinese medical treatment) |
| 08/08/1990 | CN1044403A Prepn. of medicinal liq. for treating cataract of eyes |
| 08/08/1990 | CN1009123B Foaming dust trap and foaming palliative for drilling |
| 08/07/1990 | US4947098 Regulator mechanism for a two-speed motor |
| 08/07/1990 | US4945764 Constant gain laminar jet angular rate sensing device |
| 08/01/1990 | CN2059873U Polyester honeycomb inclined-tube reinforced with chemical fibre fabric |
| 08/01/1990 | CN2059863U Combined drill and mill machine with spindle box rotatable around column |
| 08/01/1990 | CN1044224A Fluoridized anticarious toothpaste |
| 07/31/1990 | US4945568 Determining format frequencies from speech signal |
| 07/25/1990 | CN2059749U Computerized control unit for breather |
| 07/25/1990 | CN2059748U Special computer for keeping principal and insterest of commodity |
| 07/25/1990 | CN2059705U Multifunciton electric torch |
| 07/25/1990 | CN2059684U Booster pump chamber of reciprocating pump |
| 07/25/1990 | CN2059573U Anus proctoscope |
| 07/25/1990 | CN2059572U Endoscope measuring instrument |
| 07/25/1990 | CN1044148A Foam dust-removing method for quarrying rock |
| 07/18/1990 | CN2059521U Ciphertext encoder |
| 07/18/1990 | CN2059455U Jackdrill |
| 07/18/1990 | CN2059349U Double-purpose handle of electric scalpel |
| 07/18/1990 | CN2059347U Once-used integral quantitative vacuum sampler of blood |
| 07/18/1990 | CN2059342U Spiral sprayer nozzle type shower |
| 07/18/1990 | CN1043912A Energy-saving speed navigation unit by water |
| 07/18/1990 | CN1043891A Method for adjusting hot-rolling temp. of sheet metal band and device for carrying out method |
| 07/18/1990 | CN1008792B Mixture for mouth |
| 07/18/1990 | CA2007926A1 Text search and retrieval system |
| 07/17/1990 | CA1271735A1 Air release valve for sphygomanometers and the like |
| 07/11/1990 | CN2059130U Thermal compositing device |
| 07/11/1990 | CN2059073U Sigmoidoscope |
| 07/11/1990 | CN2059067U Inflatable moveable bath room |
| 07/11/1990 | CN2059066U Double layer high efficient rapid water heater |
| 07/11/1990 | CN1043630A Process for preparing traditional chinese medicine powder to cure gastric ulcer and get fast restoration |
| 07/11/1990 | CN1043629A Process for preparing rhinitis medicine |
| 07/11/1990 | CN1043625A Fat abating medicine for health and beauty |
| 07/11/1990 | CN1043624A Primary regenerant |
| 07/11/1990 | CN1008779B Translating system between chinese and japanese |
| 07/04/1990 | CN2059043U Neon lamp power supply with overload protection |
| 07/04/1990 | CN2059003U Microcomptuter controlled measuring device for power supply |
| 07/04/1990 | CN2058824U Multi-purpose temp. adjustable bathing device |
| 06/30/1990 | CA2006807A1 Method for tracking location and quantity of material |
| 06/27/1990 | CN2058773U Coin-selecting device |
| 06/27/1990 | CN2058717U Domestic emergency illuminator |
| 06/27/1990 | CN2058626U Automatic gauge controller of electric reduction thickness for cold-rolling mill |
| 06/27/1990 | CN2058590U Domestic shower and water storage bucket |
| 06/27/1990 | CN2058589U Multifunctional shower cistern |
| 06/27/1990 | CN1043262A Preparation method of chinese herbal medicines powder used for pig |