Lọc kết quả

Năm xuất bản 

1. Trước1960  (267)
2. 1960 đến 1975  (823)
3. 1976 đến 1991  (1.670)
4. 1992 đến 2008  (5.805)
5. Sau 2008  (4.621)
6. Lựa chọn khác 

Tài liệu mới 

1. Mới từ tuần trước  (129)
2. Lựa chọn khác 

Chủ đề 

1. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (8.927)
2. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (8.927)
3. General Tagging Of New Technological Developments  (8.927)
4. Paper Not Otherwise Provided For  (8.095)
5. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (8.095)
6. Impregnating Or Coating Of Paper  (8.095)
7. Pulp Compositions  (8.095)
8. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (8.095)
9. Technical Subjects Covered By Former Uspc  (6.797)
10. Technical Subjects Covered By Former Us Classification  (5.743)
11. Chemistry  (3.817)
12. Metallurgy  (3.817)
13. Layered Products  (3.541)
14. Physical Or Chemical Processes Or Apparatus In General  (2.555)
15. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (2.487)
16. Lựa chọn khác 

Ngôn ngữ 

1. English  (11.977)
2. French  (3.428)
3. German  (2.050)
4. Finnish  (736)
5. Swedish  (609)
6. Chinese  (268)
7. Russian  (185)
8. Portuguese  (83)
9. Polish  (83)
10. Norwegian  (55)
11. Spanish  (50)
12. Danish  (42)
13. Hungarian  (18)
14. Italian  (16)
15. Czech  (15)
16. Dutch  (13)
17. Ukrainian  (13)
18. Slovenian  (13)
19. Korean  (12)
20. Croatian  (11)
21. Lựa chọn khác