... and the contractor shall, as a condition of receiving the payments mentioned in this article, execute and deliver all such papers, and take all such steps as the contracting officer may require for the purpose of fully vesting in him the rights and... Urgent Deficiency Appropriations on Account of War Expenses, 1918: Hearings ... - 582 페이지 저자: United States. Congress. House. Committee on Appropriations - 1917 - 979 페이지 전체보기 -
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