Title:
Composite mounting collar and cover for septic tank aerator mechanism
United States Patent 3367071
US Patent References:
/0265277.html
- - 0265277

/1222411.html
- - 1222411

Joint construction
- - 1762713

Gate box and extension therefor
- - 1841985

Septic tank
- - 2889047


Inventors:
Maclaren, David S.
Publication Date:
02/06/1968
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Primary Class:
52/21
Other Classes:
52/245, 52/27, 261/24, 210/219, 52/169.600
International Classes:
C02F3/20
US Patent References:
3210053Aerator structure
3221881Glass fiber sewage tank
Foreign References:
DE35046C