Refine My Results

Creation Date 

1. Before 1960  (1,559)
2. 1960 To 1975  (6,692)
3. 1976 To 1991  (19,371)
4. 1992 To 2008  (29,669)
5. After 2008  (65,517)
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New Records 

1. New From Last Week  (217)
2. New From Last Month  (5,192)
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Subject 

1. Machines Or Auxiliary Tools For Construction Or Repair  (39,363)
2. Construction Of, Or Surfaces For, Roads, Sports Grounds, Orthe Like  (39,363)
3. Permanent Way  (32,125)
4. Permanent-Way Tools  (32,125)
5. Machines For Making Railways Of All Kinds  (32,125)
6. Cleaning Beaches  (21,044)
7. Fog In General  (21,044)
8. Cleaning Of Permanent Ways  (21,044)
9. Street Cleaning  (21,044)
10. Dispersing  (21,044)
11. Railways  (20,472)
12. Vehicles In General  (17,944)
13. Construction Of Bridges  (16,173)
14. Or Viaducts  (16,173)
15. Assembly Of Bridges  (16,173)
16. Physical Or Chemical Processes Or Apparatus In General  (11,232)
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Language 

1. English  (96,896)
2. Chinese  (34,568)
3. French  (16,883)
4. German  (15,515)
5. Korean  (5,893)
6. Japanese  (2,667)
7. Spanish  (2,303)
8. Russian  (1,863)
9. Swedish  (1,014)
10. Portuguese  (1,005)
11. Italian  (952)
12. Polish  (725)
13. Danish  (720)
14. Norwegian  (618)
15. Finnish  (587)
16. Dutch  (551)
17. Czech  (272)
18. Hungarian  (109)
19. Ukrainian  (104)
20. Turkish  (77)
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