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- Date:
- 1966-67
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- Date Added:
- July 19, 2022
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- , color. Produced by USAEC's Savannah River Operations Office. For sale by the Calvin Productions at
- Date:
- 1937
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- Date Added:
- June 20, 2024
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-
(By courtesy of Imperial Chemical Industries) This film demonstrates the use of the "clay
- Date:
- 1937
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- Date Added:
- June 20, 2024
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- , 1913-1931 2 Reels
(By courtesy of Armstrong Vickers Ltd.) A survey of the history of
- Date:
- 1917
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- Date Added:
- January 15, 2025
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- fine, which are marked by careful workmanship and very accurate movements, so esential to satisfactory
- Date:
- 1917
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- Date Added:
- January 15, 2025
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- diameter lens should be used for all focal lengths over 10 inches and by all means with such illuminants as
- Date:
- 1917
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- Date Added:
- January 15, 2025
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- obtainable from a single light source is obtained by direct lighting of the object without intermediate
- Date:
- 1966-67
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- Date Added:
- July 19, 2022
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- radia- tion in the field of medicine from the early work by Hevesy to the pres- ent. The program is
- Date:
- 1954
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- Date Added:
- July 19, 2022
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- previous two criteria, rektes to the extent of ownership and sponsorship of a film by an agency of the
- Date:
- 1932
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- Date Added:
- July 04, 2024
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- by divers, in the Pacific Ocean off the southwestern boundary of the United States. The
- Date:
- 1926
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- Date Added:
- July 04, 2024
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- shell. It is obtained by divers, in the Pacific Ocean off the southv^^estern boundary of
