File:HD Arnold 1915.jpg
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Summary
| Description |
English: Snapshot of Harold Arnold taken at Arlington in 1915 during early experiments in transatlantic radio telephony |
| Date | |
| Source | (1933). "Harold DeForest Arnold". Bell Laboratories Record 11 (12): 351–360. DOI:10.1063/1.1749162. |
| Author | Bell Laboratories |
Licensing
|
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:00, 29 August 2020 | | 358 × 425 (54 KB) | Shyamal | Uploaded a work by Bell Laboratories from {{cite journal| journal=Bell Laboratories Record|volume=11| issue=12| year=1933| title=Harold DeForest Arnold|pages=351–360|doi=10.1063/1.1749162|bibcode=1933RScI....4..421.|url=https://worldradiohistory.com/Archive-Bell-Laboratories-Record/30s/Bell-Laboratories-Record-1933-08.pdf}} with UploadWizard |
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