Hydraulic rams.
Contributors: Columbia Block & Ram Co.
Series: Bulletin / Columbia Block & Ram Co -- R-6.; Bulletin (Columbia Block & Ram Co.) -- R-6.
Publisher: s.n.
Place of publication: [S.l
Language: eng
Number of pages: 21
Subjects: Columbia Block & Ram Co. -- Catalogs; Associated Engineering Corp. (Portland, Or.) -- Catalogs; Hydraulic rams -- Catalogs
Genres: Catalogs.
Notes: Cover title.

"Columbia Block & Ram Co."--Cover.

"Columbia hydraulic rams are now being manufactured by the Associated Engineering Corporation in Portland ... "--Label on cover.