Static structures (e.g. – buildings) – Curvilinear barrier
Patent
1995-03-08
1997-03-11
Kent, Christopher T.
Static structures (e.g., buildings)
Curvilinear barrier
52 20, 52100, 525145, 525881, 525921, 525922, 525923, 525926, 4051501, 405300, E04B 208, E04G 1104
Patent
active
056089988
ABSTRACT:
This invention relates generally to the field of repair for manholes and other like tubular structures and is more specifically directed to a sectioned panel assembly which is premanufactured for installation within an existing manhole.
REFERENCES:
patent: 791149 (1905-05-01), Hellyer
patent: 2148783 (1939-02-01), Spaulding
patent: 3304954 (1967-02-01), Kaiser
patent: 4089139 (1978-05-01), Moffa et al.
patent: 4177614 (1979-12-01), Arp
Curfiss Robert C.
Kent Christopher T.
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