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  • Date = 1918
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The boiler maker - 1918
Steam-boilers--Periodicals.
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The Builder - March, 1918
Architecture--Periodicals., Architecture--Pennsylvania--Pittsburgh--Periodicals.
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phe1_1-01-1915-1353; Annual report of the Commissioner of Health of the Commonwealth of Pennsylvania (1915)
Public health Pennsylvania Periodicals.
The annual report of the Department of Health. Contains related legislation, Bureau reports and organizational details, including some biographies of the officers, important news and activities and budget. Also includes a list of Health Bulletins issued during the year. Includes many tables, charts and plates.
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The Coal Industry - 1919
Coal -- Periodicals., Coal mines and mining -- Periodicals.
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The Coal Industry - 1918
Coal -- Periodicals., Coal mines and mining -- Periodicals.
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American drop forger - 1918
Metal-work -- Periodicals., Steel industry and trade -- Periodicals.
Organ of the American Drop Forge Association, 1914-Apr. 1916.
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