Building units and construction elements – Prefabricated unit – Closure
Patent
1991-02-15
1993-06-08
Word, A. Hugo
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03363406
REFERENCES:
patent: D269380 (1983-06-01), d'Avila
patent: D275703 (1984-09-01), De Rocher
patent: 1996931 (1935-04-01), McGuinness
patent: 3763615 (1973-10-01), Yamazaki
patent: 4000590 (1977-01-01), Kordewick
patent: 4514932 (1985-05-01), Janis
patent: 4624072 (1986-11-01), Zilkha
patent: 4771574 (1988-09-01), Stephens
Clark Doris
Gilden Leon
Word A. Hugo
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