Construction of master mechanical oscillator for testing seismic recorders and other allied apparatus / by F.W. Lee and G.A. Irland.
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Main Authors: | , |
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Format: | Government Document Book |
Language: | English |
Published: |
Washington :
U.S. Govt. Print. Off,
1932.
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Series: | Technical paper (United States. Bureau of Mines) ;
518. |
Subjects: |