Refine my results

Material type 

1. Patents  (1,533,736)
2. Articles  (882)
3. Refine further 

Author/Contributor 

1. Cie. Aktiengesellschaft Brown, Boveri  (232)
2. Ernst Walter  (114)
3. Maschinenfabrik Schweizerische Lokomotiv-  (112)
4. Stacy Thomas F  (46)
5. Buchli Jacob  (37)
6. Towler John Maurice  (34)
7. Ljungstrom Fredrik  (30)
8. Flowers Paul E  (21)
9. Loomis Evarts G  (21)
10. Carver Fred S  (20)
11. Boltshauser Heinrich  (17)
12. Lammerz Ernst Dr  (17)
13. Fell Louis Frederick Rudston  (17)
14. Langford George W  (17)
15. Sedgwick Robert K  (15)
16. Cannon Earl  (15)
17. Souillard Maurice  (14)
18. Hogg Francis  (10)
19. Henry Nelson B  (9)
20. Peters Frank R  (6)
21. Refine further 

Subject 

1. Medicine  (1,533,744)
2. Chemistry  (1,533,736)
3. Sciences  (1,533,736)
4. Transporting  (1,533,736)
5. Performing Operations  (1,533,736)
6. Railways  (101,765)
7. Presses In General  (15,209)
8. Presses  (15,209)
9. Upholstery  (10,617)
10. Saddlery  (10,617)
11. Locomotives  (6,296)
12. Motor Railcars  (6,296)
13. Stirrups  (1,407)
14. Saddles  (1,407)
15. Refine further 

Creation date 

1. Before1910  (236,568)
2. 1910To1939  (566,400)
3. 1940To1951  (464,150)
4. 1952To1955  (131,247)
5. After 1955  (136,253)
6. Refine further 

Language 

1. English  (1,073,843)
2. French  (241,425)
3. German  (201,284)
4. Finnish  (7,465)
5. Russian  (6,118)
6. Spanish  (2,837)
7. Danish  (818)
8. Italian  (813)
9. Dutch  (278)
10. Japanese  (15)
11. Greek  (2)
12. Icelandic  (1)
13. Romanian  (1)
14. Norwegian  (1)
15. Refine further