notify party meaning in English

被通知人
到货受通知人
通知方
通知人

Notifying parties concerned of the appeal right against the decision of the commissioner
通知有关各方他们有权就专员的决定提出上诉。
Credit number 、 full name and address of the opener and notify party have to be mentioned on all documents
信用证号码、开证人的全称和地址及通知人须打在所有单据上。
Party b shall also notify party a immediately after l / c is opened so that party a can get prepared for delivery
乙方开出信用证后，应立即通知甲方，以便甲方准备交货。
Within one month before the contract expires , party b will notify party a if it intends to extend the lease
乙方在租赁期满后如需续租，应提前一个月通知甲方，由双方另行协商续租事宜。
Beneficiarys ' s signed statement stating quote one set of negotiable documents have been sent to the notify party unquote
这句话是什么意思？是说受益人证明还是说所有的文件都需要受益人的签名？

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