Method of laying a prefabricated roadway
United States Patent 3315578
US Patent References:
/1214928.html
- - 1214928

Resin-coated pulp board
- - 1776790

Construction of roofings, partitions, and the like
- - 1904080

Sidewalk construction
- - 2228763

Separable structure
- - 2293431


Inventors:
Ludwig, Wesch
Martin, Ostermann
Publication Date:
04/25/1967
View Patent Images:
Assignee:
Albert, Jean Pierre Cals
Primary Class:
Other Classes:
52/169.100, 52/309.160, 52/174
International Classes:
E01C5/20; E01C5/00
US Patent References:
2945328Floor joist and assembly
3208188Burial vaults
Foreign References:
AU128143B
GB708615A