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Creation Date 

1. Before 1910  (81)
2. 1910 To 1939  (85)
3. 1940 To 1951  (195)
4. 1952 To 1955  (145)
5. After 1955  (310)
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Resource Type 

1. Patents  (291)
2. Articles  (258)
3. Web Resources  (120)
4. Videos  (70)
5. Drawing/Maps  (44)
6. Reviews  (12)
7. Reports  (11)
8. Books  (6)
9. Archival Material / Manuscripts  (2)
10. Images  (1)
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Subject 

1. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (290)
2. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (290)
3. General Tagging Of New Technological Developments  (290)
4. Science & Technology  (265)
5. Physics  (183)
6. Physical Sciences  (175)
7. Technical Subjects Covered By Former Uspc  (172)
8. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (126)
9. Physics, Multidisciplinary  (119)
10. Transporting  (109)
11. Performing Operations  (109)
12. Chemistry  (109)
13. Technical Subjects Covered By Former Us Classification  (103)
14. Mechanical Engineering  (98)
15. Lighting  (96)
16. Weapons  (96)
17. Blasting  (96)
18. Heating  (96)
19. History  (89)
20. Science And Technology  (81)
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Databases 

1. esp@cenet  (291)
2. Europeana Collections  (185)
3. Open Shared Collection  (45)
4. MEDLINE  (44)
5. Gallica Periodicals  (22)
6. ProQuest Central  (16)
7. PubMed Central  (11)
8. HighWire Press (Free Journals)  (11)
9. Geneva Foundation Free Medical Journals  (4)
10. e-periodica  (3)
11. Delpher Boeken Basiscollectie (1781-1800)  (2)
12. JSTOR Early Journal Content  (2)
13. Open Access: EDP Open  (1)
14. HathiTrust Digital Library Full View U.S. Only  (1)
15. ProQuest One Psychology  (1)
16. Manuscriptorium  (1)
17. HathiTrust Digital Library Full View Worldwide  (1)
18. Hyper Article en Ligne (HAL) (Open Access)  (1)
19. Linda Hall Digital Library  (1)
20. Portail de Publication de Périodiques Scientifiques - PoPuPS  (1)
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Language 

1. English  (327)
2. Hungarian  (80)
3. German  (16)
4. Japanese  (3)
5. Polish  (2)
6. Spanish  (2)
7. Dutch  (2)
8. Italian  (1)
9. Chinese  (1)
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Journal Title 

1. Africa  (7)
2. Africa: Journal Of The International African Institute  (11)
3. Analytica Chimica Acta  (7)
4. Biochimica Et Biophysica Acta  (9)
5. Canadian Journal Of Chemistry  (10)
6. Electroencephalography And Clinical Neurophysiology  (7)
7. Journal De Physique Et Le Radium  (82)
8. Le Journal De Physique Et Le Radium  (86)
9. Nuclear Physics  (12)
10. Physica  (34)
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