Hydro-extractors; their safe construction and equipment.
Hydro-extractors; their safe construction and equipment.
- Geneva [Printed by Atar] 1929.
- viii, 102 p. illus. 24 cm.
- Studies and reports, Series F, 2d section (Safety) no. 3 .
At head of title: International Labour Office. "Prepared by Mr. Massarelli, assisted by Mr. Scotti."--Pref.
Bibliography: p. [92]
l 29000081
Drying apparatus.
Machinery--Safety appliances.
HD4813 / .I4 ser. F, 2d. sect., no. 3
At head of title: International Labour Office. "Prepared by Mr. Massarelli, assisted by Mr. Scotti."--Pref.
Bibliography: p. [92]
l 29000081
Drying apparatus.
Machinery--Safety appliances.
HD4813 / .I4 ser. F, 2d. sect., no. 3