Building units and construction elements – Prefabricated unit – Finishing unit
Design Patent
2000-05-30
2001-10-16
Clark, Doris (Department: 2914)
Building units and construction elements
Prefabricated unit
Finishing unit
Design Patent
active
D0449384
CLAIM:
The ornamental design for a frame for packing pieces for a fireproof lead-through in walls and other construction elements, as shown and described,
REFERENCES:
patent: 1640595 (1927-08-01), Buss
patent: 4291195 (1981-09-01), Blomqvist et al.
Clark Doris
MCT Brattberg AB
Young & Thompson
LandOfFree
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