United States Patent 3504467
Inventors:
Hatch Jr., Cornil Kent
Caulfield, James F.
Publication Date:
04/07/1970
Other Classes:
52/521, 52/531
International Classes:
E04F13/08; E04C1/00; E04D1/00
US Patent References:
| 3142937 | Covering for roofs and walls | | | |
| 3376683 | Leveling means for aluminum siding panel | | | |
| 3394520 | Interlocking roofing shingle | | | |