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6 results returnedInvestigations during 1935 of combustibles in manholes in Boston, Mass.
Investigations during 1936 of combustibles in manholes in Boston, Mass.
Investigation during 1937 of combustibles in manholes in Boston, Mass.
Investigations during 1938, 1939, and 1940 of combustibles in manholes in Boston, Mass.
Published Year
Subject
- Combustion (2)
- Gases (2)
- Manholes--Explosions--Massachusetts--Boston (2)
- Sewer gas (2)
- Acetylene--Testing (1)
- Air (1)
- Manholes (1)
- Mine explosions (1)
- Vapors (1)
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