Building units and construction elements – Structure
Patent
1977-07-19
1980-06-03
Word, A. Hugo
Building units and construction elements
Structure
D25 3, D25 22, D25 26, D2503
Patent
active
D02552698
REFERENCES:
patent: D241648 (1976-09-01), Magill
patent: D249811 (1978-10-01), Tucker
patent: 3033499 (1962-05-01), Ash
patent: 3680320 (1972-08-01), Goodboy, Jr. et al.
patent: 3685221 (1972-08-01), Mangan
patent: 3871143 (1975-03-01), Quick
Sweet's Architectural Catalog File, 1975, section 5.1/Re., p. 9, top left illustration.
Sweet's Architectural Catalog File, 1977, section 5.2/Un, pp. 2 and 4.
Braswell Joseph
Dumler Egon
McAllister Robert C.
Newman Harold
Feldman Marvin
Feldman Stephen E.
Word A. Hugo
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