Sewer form

Details Sewer form Sewer form

1977-03-21

1978-10-10

Husar, Francis S.

Static molds

In situ construction engineering type or building type-mold...

Forming hydraulic and earth control type product in situ

249177, 249184, E03F 306

Patent

active

041192915

ABSTRACT:
Sewer form consisting of two telescoping sheet metal tubes whose outer ends are provided with conical portions adapted to engage pipe openings in a manhole, the form permitting the formation of an invert of concrete.

REFERENCES:
patent: 725098 (1903-04-01), Learned
patent: 788581 (1905-05-01), Conger
patent: 924553 (1909-06-01), Irish
patent: 2681494 (1954-06-01), Weber
patent: 2684518 (1954-07-01), Whitlock

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