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Subjects
- Laborers.2
- Strikes.2
- Agriculture.1
- Construction industry -- United States.1
- Erosion.1
- Hours of labor.1
- Industrial buildings.1
- Industrial relations -- United States.1
- Industry.1
- Labor laws and legislation -- United States.1
- Labor unions.1
- Law enforcement -- United States.1
- Lawyers -- United States.1
- Open and closed shop.1
- Pickets.1
- Police -- Michigan.1
- Railroads -- United States.1
- Steel industry.1
- Strikes and lockouts -- Iron industry.1
- Strikes and lockouts -- United States.1