Title:
BELL PROJECTING DEVICE HAVING TWO ROTATABLE WHEELS
United States Patent 3538900


Inventors:
Samuels, Carl E.
Application Number:
US3538900DA
Publication Date:
11/10/1970
Filing Date:
03/07/1968
Assignee:
Carl, Samuels E.
Primary Class:
Other Classes:
124/34, 124/50, 124/53.5
International Classes:
A63B69/40; (IPC1-7): F41B15/00
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