Safety lamps, including flame safety lamps and approved electric lamps /
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| Author / Creator: | Virgin, R. Z. (Robert Zerubabel) |
|---|---|
| Imprint: | Washington, D.C. : Govt. Print. Off., 1920. |
| Description: | 72 p. : ill., plates ; 23 cm. |
| Language: | English |
| Series: | Bulletin ; no. 42 Trade and industrial series ; no. 12 Bulletin (United States. Federal Board for Vocational Education) no. 42. Trade and industrial series no. 12. |
| Subject: | |
| Format: | Print Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/3948110 |