Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1978-03-17
1980-03-04
Pitts, Harold I.
Communications: electrical
Audible indication
Percussion-type sound producer
340383, 340366R, G08B 536
Patent
active
041919432
ABSTRACT:
Small light-conductive particles are scattered randomly in light-conductive plastic. Improved light-scattering characteristics for solid-state display covers is provided.
REFERENCES:
patent: 2706262 (1955-04-01), Barnes
patent: 3786499 (1974-01-01), Jankowski
patent: 3911430 (1975-10-01), Jankowski
Cairns Bruce R.
Crockett David B.
Colwell Robert C.
Fairchild Camera and Instrument Corporation
MacPherson Alan H.
Meetin Ronald J.
Pitts Harold I.
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