Door frame

Details Door frame Door frame

1987-04-27

1990-01-02

Word, A. Hugo

Building units and construction elements

Architectural stock material

Extruded shape

Patent

active

D03053660

REFERENCES:
patent: 3783559 (1974-01-01), Yocum et al.
patent: 3889423 (1975-06-01), Begin
patent: 4005558 (1977-02-01), Barrison
patent: 4067157 (1978-01-01), Robinson
patent: 4238909 (1980-12-01), Mutton
patent: 4251962 (1981-02-01), Langenhorst

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