Tubular beryllium phonograph needleshank and method of formation

Details Tubular beryllium phonograph needleshank and method of formation Tubular beryllium phonograph needleshank and method of formation

1982-02-17

1984-09-25

Stephen, Steven L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

G11B 302

Patent

active

044738978

ABSTRACT:
A phonograph stylus shank is formed by annealing and rolling beryllium sheet into a tube with an overlapping seam.

REFERENCES:
patent: 2311385 (1943-02-01), Hasbrouck
patent: 3526728 (1970-09-01), Iga
patent: 3587658 (1971-06-01), Giltner
patent: 3865997 (1975-02-01), Halter
patent: 3909008 (1975-09-01), Sakai
patent: 3961797 (1976-06-01), Tsukagoshi
patent: 3983335 (1976-09-01), Nemoto
patent: 4033474 (1977-07-01), Rentmeester
patent: 4124783 (1978-11-01), Nemoto

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