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Showing results for :  VIET NAM
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Country Number format Kind code Example From To Document type
 VN n(1+) A1 VN30     Granted patent for international filings
 VN n(1+) A3 VN256     Granted patent for national filings
 VN n(1+) A7 None     Patent of addition
 VN n(1+) A8 None     Inventor's certificate of addition
 VN n(1+) B None     Granted patent
 VN n(1+) U VN10     Utility model
 VN n(1+) Y None     Granted utility model

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Legend: l=a-z / n=0-9 / c=century / y=year / j=Emperor year / ( ) contains the length of the numerical part.
AD=application date / PD=publication date / PN=publication number.
A blank in "From" or "To" = without limit going backwards / forwards respectively.