Building units and construction elements – Prefabricated unit – Closure
Patent
1992-10-20
1993-12-14
Word, A. Hugo
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03423255
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patent: D304497 (1989-11-01), Briggs, Sr.
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patent: 533045 (1895-01-01), Blane
patent: 873810 (1907-12-01), Vance
patent: 2729287 (1956-01-01), Goldner
patent: 4887391 (1989-12-01), Briggs, Sr.
patent: 4974362 (1990-12-01), Briggs, Sr.
2-page brochure re. the Pinecrest Light Shapers, .COPYRGT.Pinecrest, 1988.
Clark Doris
Pinecrest, Inc.
Word A. Hugo
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