When did the Internet enter China?

A: Hello. The numbering features of China patents from 1993 to September 30th, 2003 are as follows: all international applications entering the national phase in China are given the national application number, which still consists of 9 digits, such as 94 19000 1.0. The first two digits indicate the year when the patent application was accepted, the third digit indicates the type of international application: 1- invention, 2- utility model, the fourth digit 8 or 9 indicates the international application that entered the national phase in China, the last four digits indicate the serial number that entered the national phase in China, and the ninth digit after the decimal point is the computer check code. This composition is used to indicate the application number of the international application for inventions and utility models that entered the national phase in China from 1994 to 1997. Since 1998, the application number of the international application for invention and utility model entering the national phase in China has changed again, and it still consists of 9 digits, of which the third digit is 8, indicating that the international application for invention patent entered the national phase in China, and the third digit is 9, indicating that the international application for utility model patent entered the national phase in China. The last five digits indicate the sequence number of entering the national phase of China, which remains unchanged in other meaning, such as 98805245.8, 9890000 1. X PCT is the English abbreviation of Patent Cooperation Treaty, which is an international cooperation treaty in the patent field, excluding design. The main purpose of PCT is to simplify the method of applying for patent protection in several countries, make it more effective and economical, and benefit the users of the patent system and the patent office that has the right to manage the system. Hague Agreement on the International Preservation of Industrial Designs, referred to as The Hague Agreement for short, is an international convention signed in The Hague, the Netherlands, on June 6th, 1925 165438+ to establish an international registration system for industrial designs and simplify the application procedures for industrial design patents. The agreement came into effect on 1928 and is now managed by the International Bureau of the World Intellectual Property Organization. The purpose of the agreement is to simplify the application procedures for industrial design patents, so that the applicant can obtain protection in some countries only by submitting the industrial design for patent application once as required, thus avoiding the duplication and trouble of saving or registering in patent offices in various countries and reducing the applicant's expenses. According to the agreement, nationals or residents of a contracting state can directly submit their designs to the International Bureau of the World Intellectual Property Organization through the patent office of that country in accordance with the laws of that contracting state, that is, they can obtain the protection of their designs in all other contracting States; Apply to the International Bureau of the World Intellectual Property Organization for international preservation in the form of industrial designs or drawings, photographs or other patterns that can fully reflect the designs. However, China is not a party to this agreement.