Duct

Details Duct Duct

1996-04-25

1998-11-03

Lichtenstein, Lisa

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23266, 2301

Patent

active

D04006704

REFERENCES:
patent: D307174 (1990-04-01), Bjorkman et al.
patent: D371189 (1996-06-01), Dharamsi et al.
patent: 4296157 (1981-10-01), Conte
VSL Corporation, VSL Post-Tensioning Systems, Mar. 1994, pp. 1-30.

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