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Creator Personal Names
Baier, Edward J.
Remove constraint Creator Personal Names: Baier, Edward J.
Creator Personal Names
Ortmeyer, Carl E.
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All Subjects
Coal mines and mining--Pennsylvania.
Remove constraint All Subjects: Coal mines and mining--Pennsylvania.
All Subjects
Disability insurance--Pennsylvania.
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Subject Topical
Lungs--Dust diseases.
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Subject Topical
Workers' compensation--Pennsylvania.
Remove constraint Subject Topical: Workers' compensation--Pennsylvania.
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