Classroom building

Details Classroom building Classroom building

1996-06-04

1997-10-14

Clark, Doris

Building units and construction elements

Structure

D25 17, 2503

Patent

active

D03850420

REFERENCES:
patent: D153043 (1949-03-01), Shannon
patent: D349348 (1994-08-01), McGrath
patent: 5317857 (1994-06-01), Allison

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