Adapter for access units of underfloor ducts
United States Patent 3199713
US Patent References:
/0350891.html
- - 0350891
Junction box of the floor type
- - 1949883
Terrazzo holder for under-floor junction box
- - 2929529
Flush linoleum pan for headerduct outlet
- - 2936092
Junction box for underfloor wiring system
- - 3029964
/0350891.html
- - 0350891
Junction box of the floor type
- - 1949883
Terrazzo holder for under-floor junction box
- - 2929529
Flush linoleum pan for headerduct outlet
- - 2936092
Junction box for underfloor wiring system
- - 3029964
Inventors:
Flachbarth, Charles T.
Publication Date:
08/10/1965
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Export Citation:
Assignee:
Walker, Brothers
Primary Class:
International Classes:
E04F19/08
US Patent References:
| 3081896 | Closures for access openings and method of using the same |