Nickel-plated brass. From ‘A Catalog of Pulmonary Function Equipment and Accessories”, Collins, 1966, page 25.
Tag Archives: Hans Rudolph
Valve, Hans Rudolph, Small High Velocity, P-309, 1966
Made of nickel-plated brass. From ‘A Catalog of Pulmonary Function Equipment and Accessories”, Collins, 1966, page 22.
Valve, Hans Rudolph, Large High-Velocity, P-308, 1966
Made of nickel-plated brass. From ‘A Catalog of Pulmonary Function Equipment and Accessories”, Collins, 1966, page 22.
Valve, Hans Rudolph, 5-way, P-310, 1966
Intended for Residual Volume measurements. From ‘A Catalog of Pulmonary Function Equipment and Accessories”, Collins, 1966, page 23.
Valve, Hans Rudolph, 1982
From the 1982 Collins supply catalog.
Mouth/Face Mask, Hans Rudolph, 1991
From Respiratory Care, 1991, Volume 36, No. 5, Page 437.