Title:
METHOD OF OBTAINING A CONVENIENT OPENING DEVICE
United States Patent 3515777


Inventors:
Holthaus, Richard L.
Application Number:
US3515777DA
Publication Date:
06/02/1970
Filing Date:
01/05/1968
Assignee:
DOW CHEMICAL CO
Primary Class:
Other Classes:
156/273.9, 264/248, 264/249, 264/454
International Classes:
B29C65/34; B29C70/82; B65D1/02; (IPC1-7): B29C27/02
View Patent Images:
US Patent References:
3265781Assembly method1966-08-09
1447059Wire-embedding tool1923-02-27
1428185Device for embedding wires in fusible sheets1922-09-05