62 STAT.] 80TH CONG. , 2D SESS.-CHS. 523, 524-JUNE 19, 1948 situated at the designated location or locations and only while so situated: Provided, That an instrument recorded under section 503 (a) (2) shall not be affected as to the engine or engines specifically identified therein, by any instrument theretofore or thereafter recorded pursuant to section 503 (a) (3). "(e) No conveyance or other instrument shall be recorded unless it shall have been acknowledged before a notary public or other officer authorized by the law of the United States, or of a State, Territory, or possession thereof, or the District of Columbia, to take acknowledge- ment of deeds. "(f) The Administrator shall keep a record of the time and date of the filing of conveyances and other instruments with him and of the time and date of recordation thereof. He shall record conveyances and other instruments filed with him in the order of their reception, in files to be kept for that purpose, and indexed according to- "(1) the identifying description of the aircraft or aircraft engine, or in the case of an instrument referred to in section 503 (a) (3), the location or locations specified therein; and "(2) the names of the parties to the conveyance or other instrument. "(g) The Administrator is authorized to provide by regulation for the endorsement upon certificates of registration, or aircraft cer- tificates, of information with respect to the ownership of the aircraft for which each certificate is issued, the recording of discharges and satisfactions of recorded instruments, and other transactions affecting title to or interest in aircraft, aircraft engines, propellers, appliances, or parts, and for such other records, proceedings, and details as may be necessary to facilitate the determination of the rights of parties dealing with civil aircraft of the United States, aircraft engines, propellers, appliances, or parts. "(h) The person applying for the issuance or renewal of an air- worthiness certificate for an aircraft with respect to which there has been no recordation of ownership as provided in this section shall present with his application such information with respect to the ownership of the aircraft as the Administrator shall deem necessary to show the persons who are holders of property interests in such aircraft and the nature and extent of such interests." Approved June 19, 1948. [CHAPTER 524] AN ACT To authorize the Secretary of the Army, the Secretary of the Navy, and the Secretary of the Air Force to return certain lands situated in Puerto Rico, in accordance with the terms of the conveyances to the United States Govern- ment, and final judgments in certain condemnation proceedings. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the Secretary of the Army, the Secretary of the Navy, and the Secretary of the Air Force are individually authorized, in accordance with the express provisions of the conveyances to the United States Government or the final judgments in condemnation proceedings filed at the request of the Secretary of the Army in the Federal District Court for Puerto Rico, to convey all or any part of the land in Puerto Rico, which was acquired for national defense purposes, when such land or part thereof is no longer required for such purposes. The improvements con- structed by the Departments of the Army, Navy, or Air Force, upon 495 Acknowledgment before notary public. Index of convey- ances. Regulations. Unrecorded owner- ship. June 19, 1948 IS. 2592] [Public Law 693] Puerto Rico. Return of land ac- quired for national- defense purposes. Disposal of improve- ments.
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