Square construction module

Description

FIG. 1 is a bottom plan view of a square construction module showing our new design;

FIG. 2 is a rear left side elevational view thereof;

FIG. 3 is a front right side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D284308 June 17, 1986 Risi et al.
4197009 April 8, 1980 Lundberg
Patent History
Patent number: D319316
Type: Grant
Filed: Jan 5, 1989
Date of Patent: Aug 20, 1991
Inventors: Jan van Weerden (NL-4881 WZ Zundert), Johannes Valkenburg (NL-3028 GR Rotterdam), Ferdinand P. van der Spek (NL-4817 LM Breda)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Attorney: Susan K. Lehnhardt
Application Number: 7/293,868
Classifications