McGill Electrical Supplies Catalog No. 19
- Author(s): McGill Mfg. Co.
- Category: Tools
- Publisher: McGill Mfg. Co.
- Publish year: 1920
- ISBN: 9678000018885
- Number of Pages: 15
But the advent and rapidly increasing use of Tungsten and Mazda Lamps make lamp protection and the use of Loxons even more necessary, if not imperative.
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