Mold for swimming pools
United States Patent 2910759
US Patent References:
/0720536.html
- - 0720536

/0979863.html
- - 0979863

/1148246.html
- - 1148246

Method and apparatus for manufacturing hollow concrete building blocks
- - 1547530

Gutter form
- - 1598332


Inventors:
Lifter, Bennett M.
Seal Jr., Russell R.
Publication Date:
11/03/1959
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Assignee:
NU BILT HOMES INC
Primary Class:
249/141
Other Classes:
425/DIG.125, 52/264, 52/169.700, 249/115, 249/149, 249/DIG.003
International Classes:
E04H4/00
US Patent References:
1628316Concrete form
1937306Apparatus for making concrete fireplaces
2296553Liner for cement and concrete forms
2298579Absorptive form lining