Head for a bubble tube (original) (raw)

1988

Abstract

United States Patent [i9] Wicks et al. [ii] Patent Number: [45] Date of Patent: 4,719,799 Jan. 19, 1988 [54] HEAD FOR A BUBBLE TUBE [75] Inventors: Douglas B. Wicks; Dennis W. Johnson; William SC Brooks; Terry J. Nelson, all of Saskatoon, Canada [73] Assignee: ...

Douglas Wicks hasn't uploaded this paper.

Let Douglas know you want this paper to be uploaded.

Ask for this paper to be uploaded.