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| 086 | 0 | ⊔ | ‡aY 4.P 84/1:Ai 7/5 |
| 110 | 1 | ⊔ | ‡aUnited States. ‡bCongress. ‡bHouse. ‡bCommittee on Post Office and Post Roads. |
| 245 | 1 | 0 | ‡aFlying fields and hangars--air mail service : ‡bhearings before a subcommittee on the Committee on Post Office and Post Roads, House of Representatives, Sixty-ninth Congress, first session on H.R. 4326 and H.R.4642, May 3, 1926. |
| 260 | ⊔ | ⊔ | ‡aWashington : ‡bG.P.O., ‡c1926. |
| 300 | ⊔ | ⊔ | ‡aii, 33 pages ; ‡c24 cm |
| 336 | ⊔ | ⊔ | ‡atext ‡btxt ‡2rdacontent |
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| 500 | ⊔ | ⊔ | ‡aCover title. |
| 538 | ⊔ | ⊔ | ‡aMode of access: Internet. |
| 610 | 1 | 0 | ‡aUnited States. ‡bPost Office Department. |
| 650 | ⊔ | 0 | ‡aConstruction contracts ‡zUnited States. |
| 650 | ⊔ | 0 | ‡aAirports ‡zUnited States. |
| 650 | ⊔ | 0 | ‡aHangars ‡zUnited States. |
| 650 | ⊔ | 0 | ‡aAir mail service ‡zUnited States. |
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