General Gas Light Company
Subtitle: manufacturers of Humphrey gas unit heaters
Publisher: The Company
Published: 1930
Place of publication: Kalamazoo, Mich
Language: eng
Number of pages: 41
Subjects: Catalogs; Heating; Equipment and supplies; Gas appliances; General Gas-Light Company
Notes: Brochure illustrates installations of the Humphrey gas unit heater.

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