Building units and construction elements – Prefabricated unit – Closure
Patent
1988-10-24
1992-01-21
Word, A. Hugo
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03234010
REFERENCES:
patent: D71296 (1926-10-01), Patasnik
patent: D85584 (1931-11-01), Kliot
patent: D240812 (1976-08-01), Imbrecht
patent: D265931 (1982-08-01), Simpson
Glossary of Terms used in Gothic Architecture .COPYRGT.1875, p. 17, item #13 Trefoil, bottom left of page.
Clark Doris
Word A. Hugo
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