E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
20/32
E04C 2/296 (2006.01) B23K 1/20 (2006.01) E04B 1/00 (2006.01) E04C 2/00 (2006.01)
Patent
CA 999714
Friedrich Nikolaus
Trojahn Charles J.
Frank Bruckhorst Company (a Partnership)
Friedrich Metal Products Co.
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