E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
20/25
E04C 3/07 (2006.01) E04B 2/74 (2006.01) E04B 2/78 (2006.01)
Patent
CA 980533
Christiansen Hans D.
Meyer George E.
Tillisch Paul W.
LandOfFree
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