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Construction
Class Information
Number:
D25/107
Name:
Building units and construction elements
>
Architectural stock material
>
Transparent or translucent
>
Three or more pattern repeats about axis on side (17)
> Hollow type
Description:
Patents under this class:
Patent Number
Title Of Patent
Date Issued
D300061
Glass brick
Feb. 28, 1989
D289432
Hollow tile for solar heating system
Apr. 21, 1987
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