File:Holtzer Cabot Wireless Head Normal Receivers.png
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Summary
| Description |
English: Holtzer Cabot telephone receivers for operators, homes, and wireless operators; early ad for headphones 1909. |
| Date | |
| Source | https://books.google.com/books?id=7Hs3AQAAMAAJ&pg=RA5-PA10 |
| Author | Holtzer Cabot |
Licensing
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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. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:51, 30 April 2023 | | 478 × 331 (119 KB) | wikimediacommons>Guest2625 | Uploaded a work by Holtzer Cabot from https://books.google.com/books?id=7Hs3AQAAMAAJ&pg=RA5-PA10 with UploadWizard |
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