Category:William J. Hammer
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American engineer (1858–1934)  | |||||
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| Date of birth | 26 February 1858 Pennsylvania | ||||
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| Date of death | 24 March 1934 | ||||
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Media in category "William J. Hammer"
The following 34 files are in this category, out of 34 total.
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AIEE room.jpg 422 × 232; 27 KB
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Case 5.jpg 974 × 496; 61 KB
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E379.jpg 309 × 545; 99 KB
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E530.jpg 353 × 545; 100 KB
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E866.jpg 269 × 493; 79 KB
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E878.jpg 341 × 565; 69 KB
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E900.jpg 313 × 513; 113 KB
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E904.jpg 297 × 561; 94 KB
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E916.jpg 293 × 537; 89 KB
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E929.jpg 353 × 581; 108 KB
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E938.jpg 325 × 553; 76 KB
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E978.jpg 325 × 541; 122 KB
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E988.jpg 357 × 557; 110 KB
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Edison spiral filament lamps.jpg 1,161 × 553; 78 KB
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Egg shaped globes.jpg 734 × 518; 78 KB
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Four Hammer bulbs.jpg 1,999 × 1,137; 1.82 MB
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Front cover; Radium, Selenium, Ultra-Violet Light etc Wellcome L0074514.jpg 3,744 × 5,545; 6.2 MB
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Hammer case No 1.jpg 1,347 × 637; 213 KB
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Hammer case No 2.jpg 1,327 × 653; 176 KB
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Hammer St Louis collection 1904.jpg 704 × 476; 94 KB
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Portrait of William J. Hammer. (12d576736fe34954b2871b5c9fbfa0ea).jpg 2,064 × 2,940; 1.58 MB
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Signature of William Joseph Hammer.png 386 × 134; 35 KB
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Standard Pear shaped lamps.jpg 1,029 × 490; 90 KB
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The History of an Art.jpg 1,186 × 624; 239 KB
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Vegetable filaments.jpg 834 × 500; 51 KB
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William Joseph Hammer in 1881.jpg 350 × 482; 28 KB
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