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Subject (Region)
- United States1,543
- Great Britain348
- France163
- Germany127
- England115
- New York (State)112
- China97
- Italy90
- India87
- Europe81
- Louisiana80
- Soviet Union77
- Africa76
- New York75
- Pennsylvania72
- Maine67
- South Africa65
- California64
- Canada63
- Waldo Patent63