Category:Sound-powered telephones
- English: Sound-powered telephones
- 中文（臺灣）：聲力電話
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Subcategories
This category has the following 2 subcategories, out of 2 total.
T
- Talker helmet (32 F)
Media in category "Sound-powered telephones"
The following 8 files are in this category, out of 8 total.
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Conan O'Brien - Navy.jpg 954 × 1,246; 525 KB
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Conan O'Brien speaks to sailors 20030518.jpg 1,312 × 2,000; 624 KB
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HMNZS Te Kaha sound-powered telephone 20080702.jpg 1,200 × 1,599; 1.38 MB
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Hose-McCann sound-powered telephone on Jeremiah O'Brien 20090312.jpg 1,458 × 1,944; 2.73 MB
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Montauk Point Lighthouse - Mid-20th Century Crank Phone.jpg 1,544 × 1,024; 183 KB
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ROCN PFG-1110 sound-powered telephone X1J 20190324.jpg 3,600 × 2,700; 800 KB
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Actor Tom Selleck visiting the Bridge of the USS Ronald Reagan -- 040722-N-5621B-481.jpg 1,362 × 2,080; 698 KB
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Sound Powered Phone.jpg 960 × 1,280; 130 KB
