Title:
Inlet valve assembly for central cleaning system
United States Patent 3291927
US Patent References:
Wall inlet for vacuum system
- - 3036170
Inlet valve assembly
- - 3036814
Wall fitting and control for vacuum cleaning systems
- - 3076068
Vacuum machine wall plug switch
- - 3159727
Builtin vacuum cleaner
- - 3173164
Wall inlet for vacuum system
- - 3036170
Inlet valve assembly
- - 3036814
Wall fitting and control for vacuum cleaning systems
- - 3076068
Vacuum machine wall plug switch
- - 3159727
Builtin vacuum cleaner
- - 3173164
Inventors:
Riley Jr., Robert H.
Rosenthal Jr., Francis J.
Rosenthal Jr., Francis J.
Publication Date:
12/13/1966
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Export Citation:
Assignee:
BLACK & DECKER MFG CO
Primary Class:
Other Classes:
137/360, 55/DIG.008, 15/314
International Classes:
F16K1/20; F16L29/00; F16K1/18