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- none Patent Cooperation Treaty
Article 67
Signature and Languages(1)
(a) This Treaty shall be signed in a single original in the English and French languages, both texts being equally authentic.
(b) Official texts shall be established by the Director General after consultation with the interested Governments, in the German, Japanese, Portuguese, Russian and Spanish languages, and such other languages as the Assembly may designate.
(2) This Treaty shall remain open for signature at Washington until December 31, 1970.
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