Pipe joints or couplings – Elbow
Patent
1983-08-01
1986-08-05
Arola, Dave W.
Pipe joints or couplings
Elbow
285 39, 285355, 285369, F16L 5500
Patent
active
046038892
ABSTRACT:
A threaded fastener having an axis adapted to thread connect to two bodies for holding such bodies in fastened condition, one body having one thread and another body having another thread,
REFERENCES:
patent: 279086 (1883-06-01), Emery
patent: 349146 (1886-09-01), Duff
patent: 720578 (1903-02-01), Greenfield
patent: 1583126 (1926-05-01), Crane
patent: 2122757 (1938-07-01), Scott
patent: 2783809 (1957-03-01), Haines
patent: 2906152 (1959-09-01), Brase
patent: 4310181 (1982-01-01), Welsh
patent: 4373754 (1983-02-01), Bollfrass et al.
Arola Dave W.
Haefliger William W.
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