Refine My Results

Creation Date 

1. Before 1960  (42,500)
2. 1960 To 1975  (54,084)
3. 1976 To 1991  (233,280)
4. 1992 To 2008  (642,960)
5. After 2008  (1,122,130)
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Resource Type 

1. Patents  (2,101,005)
2. Articles  (18)
3. Images  (6)
4. Web Resources  (3)
5. Conference Proceedings  (2)
6. Books  (2)
7. Book Chapters  (2)
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Subject 

1. Education  (2,101,021)
2. Physics  (2,101,007)
3. Advertising  (2,101,006)
4. Cryptography  (2,101,005)
5. Seals  (2,101,005)
6. Displaying  (844,973)
7. Labels Or Name-Plates  (844,973)
8. Signs  (844,973)
9. Electricity  (548,054)
10. Educational Or Demonstration Appliances  (473,021)
11. Planetaria  (473,021)
12. Appliances For Teaching, Or Communicating With, The Blind,deaf Or Mute  (473,021)
13. Diagrams  (473,021)
14. Globes  (473,021)
15. Calculating  (407,323)
16. Computing  (407,323)
17. Counting  (407,323)
18. Optics  (337,142)
19. Electric Digital Data Processing  (288,539)
20. More options 

Databases 

1. esp@cenet  (2,101,005)
2. ProQuest Central  (9)
3. Europeana Collections  (9)
4. Education Resources Information Center (ERIC)  (7)
5. MEDLINE  (4)
6. DOAJ Directory of Open Access Journals  (4)
7. Free E- Journals  (3)
8. GFMER Free Medical Journals  (2)
9. ROAD: Directory of Open Access Scholarly Resources  (2)
10. VCU Scholars Compass  (1)
11. PubMed Central  (1)
12. ProQuest One Psychology  (1)
13. Hyper Article en Ligne (HAL) (Open Access)  (1)
14. Open Access Journals at Boston College  (1)
15. SciELO  (1)
16. Recercat  (1)
17. Ebook Central - Academic Complete  (1)
18. More options 

Language 

1. English  (1,805,372)
2. Chinese  (511,503)
3. French  (226,193)
4. German  (160,011)
5. Korean  (124,367)
6. Japanese  (113,765)
7. Spanish  (23,045)
8. Russian  (17,860)
9. Portuguese  (11,578)
10. Italian  (6,218)
11. Swedish  (3,976)
12. Dutch  (3,387)
13. Finnish  (2,649)
14. Danish  (2,622)
15. Polish  (2,437)
16. Norwegian  (1,758)
17. Ukrainian  (1,682)
18. Czech  (1,369)
19. Turkish  (1,226)
20. Romanian  (671)
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Journal Title 

1. Academic Radiology  (1)
2. Applied Mechanics And Materials  (1)
3. Berichte Zur Wissenschaftsgeschichte  (1)
4. Frontiers Of Green Building, Materials And Civil Engineering, Pts 1-8  (1)
5. Geoconservation Research  (1)
6. Information Technology And Libraries  (1)
7. Journal Of Autism And Developmental Disorders  (1)
8. Journal Of Computer Assisted Learning  (1)
9. Journal Of Developmental And Physical Disabilities  (1)
10. Journal Of Digital Imaging  (1)
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