Title:
DESTRUCTIBLE ARTICLE FOR RESERVING A RECESS IN CONCRETE
United States Patent 3421551


Inventors:
Currier, Gerald F.
Application Number:
US3421551DA
Publication Date:
01/14/1969
Filing Date:
05/21/1965
Assignee:
Gerald, Currier F.
Richard, Lindquist H.
Primary Class:
Other Classes:
52/99, 52/220.8, 249/61, 249/177, 285/58, 403/23
International Classes:
E04G15/00; (IPC1-7): F16L/
View Patent Images: