Telephonic communications – Special services – Anonymous party
Patent
1987-03-25
1989-03-07
LaRoche, Eugene R.
Telephonic communications
Special services
Anonymous party
350334, 49463, 49465, 379428, 379440, E06B 332, G02F 113
Patent
active
048100668
ABSTRACT:
A cover is provided for interchangeable character media or light sources including latch elements which interact with corresponding cooperating latches within a depression of the terminal equipment. The cover which can be released or attached at any time without the assistance of tools. The cover is fashioned strip-like and one end thereof includes a short nose cooperating with a recess in the depression whereas the other end of the cover has a resilient tab including a crowned thickening in its end region, this resilient tab engaging behind a shoulder within the depression. The cover lies against projections within the depression with pre-tension.
REFERENCES:
patent: 11227 (1854-07-01), Ingalls
patent: 1044383 (1912-11-01), Hatch
patent: 1165805 (1915-12-01), Quigley
patent: 3913971 (1975-10-01), Green
patent: 4284855 (1981-08-01), Adams et al.
patent: 4395591 (1983-07-01), Kaczkos
Greska, Hanns et al., "Siemens Miniset 200-A Compact Telephone for all Locations", Telecom Report, Dec. 1985.
Awakowicz Erwin
Grassl Erwin
LaRoche Eugene R.
McCutcheon Nathan W.
Siemens Aktiengesellschaft
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