Pipes and tubular conduits – Distinct layers
Patent
1981-03-17
1983-05-10
Bryant, III, James E.
Pipes and tubular conduits
Distinct layers
138141, 138172, 138177, 138178, 428 36, 428586, 369170, F16L 914, G11B 302
Patent
active
043824544
ABSTRACT:
This invention relates to a boron cantilever in pipe form, composed of an inner layer of crystal boron and an outer layer of amorphous boron and to a method for producing it. The cantilever is particularly useful for supporting a phonographic pickup stylus.
REFERENCES:
patent: 2438111 (1948-03-01), Campbell
patent: 3918723 (1975-11-01), Nakajima et al.
patent: 3961797 (1976-06-01), Tsukagoshi
patent: 3974012 (1976-08-01), Hogarth
Aoki Masaki
Nagasawa Masahiro
Yamazoe Hiroshi
Yoshida Shigeru
Bryant III James E.
Matsushita Electric - Industrial Co., Ltd.
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