Refine My Results

Creation Date 

1. Before 1960  (38,519)
2. 1960 To 1975  (97,095)
3. 1976 To 1991  (435,405)
4. 1992 To 2008  (846,639)
5. After 2008  (1,706,225)
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New Records 

1. New From Last Month  (91,540)
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Subject 

1. Manufacture Of Assemblages Of Electrical Components  (1,826,929)
2. Printed Circuits  (1,826,929)
3. Casings Or Constructional Details Of Electric Apparatus  (1,826,929)
4. Electric Heating  (1,094,296)
5. Electric Lighting Not Otherwise Provided For  (1,094,296)
6. Basic Electric Elements  (849,869)
7. Physics  (610,463)
8. Semiconductor Devices  (504,021)
9. Electric Solid State Devices Not Otherwise Provided For  (504,021)
10. Transporting  (478,754)
11. Performing Operations  (478,754)
12. Lighting  (350,109)
13. Weapons  (350,109)
14. Blasting  (350,109)
15. Heating  (350,109)
16. Mechanical Engineering  (350,109)
17. Metallurgy  (332,807)
18. Chemistry  (332,807)
19. More options 

Language 

1. English  (2,654,983)
2. Chinese  (801,979)
3. French  (355,920)
4. German  (312,889)
5. Japanese  (186,510)
6. Korean  (158,286)
7. Spanish  (22,741)
8. Russian  (17,687)
9. Portuguese  (11,011)
10. Italian  (9,819)
11. Swedish  (8,246)
12. Finnish  (5,840)
13. Dutch  (4,488)
14. Danish  (4,287)
15. Polish  (3,775)
16. Norwegian  (2,884)
17. Czech  (998)
18. Turkish  (933)
19. Ukrainian  (787)
20. Hungarian  (721)
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