Author: | Katz, S. H. |
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Additional Authors: | McCaa, George S., |
Year: | 1929 |
Document Type: | MAIN |
Issuing Agency: | U.S. Govt. Print. Off., |
Series: | Miners' circular ; |
Report Number: | 32 |
Subject: | Gas masks |
Link: | https://hdl.handle.net/2027/mdp.39015077562091 |