United States Patent 2993409
Inventors:
Boyd, Robert A.
Publication Date:
07/25/1961
Assignee:
OWENS ILLINOIS GLASS CO
International Classes:
E04C2/54; E04D3/06; E04D13/03; F21S11/00; F21V5/08; E04D3/02; F21V5/00
US Patent References:
| 1652347 | Lighting apparatus | | | |
| 2097738 | Skylight | | | |
| 2419267 | Skylight construction | | | |
| 2545906 | Multiple glass sheet glazing unit having enclosed angled metal slats | | | |
Foreign References:
| GB189716541A | | | | |
| GB556218A | | | | |
| GB754619A | | | | |