United States Patent 2903021
Inventors:
Holden, Grenville R.
Arthur, Schiff
Publication Date:
09/08/1959
Assignee:
F C HUYCK & SONS
Other Classes:
162/348, 245/8, 28/142, 139/388, 139/426R, 162/903, 139/383R, 139/383A
International Classes:
D03D25/00; D21F1/00
Foreign References:
| GB186600501A | | | | |
| DE46121C | | | | |
| DE813626C | | | | |