"Over-the-top" door equipment for operating vertical doors overhead
Publisher: Frantz Mfg. Company
Published: 1920
Place of publication: Sterling, Ill
Language: eng
Subjects: Frantz Manufacturing Company (Sterling, Ill.); Catalogs; Mechanically-operated doors
Other titles: Over the top door equipment for operating vertical doors overhead.
Notes: "A.I.A. file no. 27-C-6"--Cover.