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Patent Protection Ended

No. Patent No. Title
7361. PI 90001346 OLEFIN POLYMERIZATION PROCESS.
7362. PI 90001349 PIPE COUPLING.
7363. PI 90001350 AMPLIFIER ARRANGEMENT FOR PRODUCING A CONTROLLABLE NON-LINEAR TRANSFER CHARACTERISTIC USEFUL FOR IMPROVING THE CONTRAST OF AN IMAGE.
7364. PI 90001351 CONTROL SIGNAL GENERATION FOR A TELEVISION SYSTEM.
7365. PI 90001352 SUBSCRIBER UNIT FOR WIRELESS DIGITAL SUBSCRIBER COMMUNICATION SYSTEM.
7366. PI 90001353 PROCESS FOR THE PREPARATION OF IMINODIACETONITRILE AND IMINODIACETIC ACID
7367. PI 90001356 IMPROVEMENTS RELATING TO SMOKING ARTICLES.
7368. PI 90001357 STRUCTURE OF JACQUARD CONTROL MECHANISM
7369. PI 90001360 SOLID CORRECTION COMPOSITIONS.
7370. PI 90001362 METHOD FOR CONTROLLING OPENING/CLOSING OF DOOR IN AUTOMATIC DOOR SYSTEM.
7371. PI 90001363 AZABICYCLO QUINOLONE CARBOXYLIC ACIDS.
7372. PI 90001364 INPUT DEVICES.
7373. PI 90001365 PROCEDURE AND APPARATUS FOR THE PURIFICATION OF AIR, FLUE GASES OR EQUIVALENT
7374. PI 90001366 PROCESS FOR THE PREPARATION OF CUMENE AND ETHYL BENZENE
7375. PI 90001367 POLYETHER SUBSTITUTED MANNICH BASES AS FUEL AND LUBRICANT ASHLESS DISPERSANTS.
7376. PI 90001372 INTERSTITIAL LINE GENERATOR.
7377. PI 90001374 AZEOTROPE-LIKE COMPOSITIONS OF DICHLORO- PENTAFLUOROPROPANE AND 1,2-DICHLOROETHYLENE.
7378. PI 90001375 LIQUEFACTION OF NATURAL GAS USING PROCESS-LOADED EXPANDERS.
7379. PI 90001376 PROCESS FOR THE PREPARATION OF A CATALYST OR CATALYSYT PRECURSOR SUITABLE FOR THE PREPARATION OF HYDROCARBONS FROM CARBON MONOXIDE AND HYDROGEN, AND SAID CATALYST.
7380. PI 90001377 REFRIGERANT SHUNT.