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ʱ䣺2019-07-25 17:05 ߣҼϻַ

ӢΪһƵʱңھúͷϵ϶ʮֵķ׶ظȫĽ֮һǮֽټŷ޵Ҫλ뱱ԼӢ֮еľùϵӢ˾ȫгнϸߵ

Ӣ̱ķƣ1875꣬ڿ˷ӶѺڽ̱עᷨ——̱ע1875(The Trade Marks Registration Act of 1875)̱עᴦҲ1876׶عơӢ̱ܻأӢר(The Patent Office)

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Ӣ̱ܲӢר(The Patent Office)TPOյ̱ע󣬻ʽȷǷ̱עĻҪϣTPOǩڲύһڷһ֪ͨ顣Ҽϻַ

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