Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04M
TELEPHONIC COMMUNICATION
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Substation equipment, e.g. for use by subscribers
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H04M1/57
Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
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H04M1/575
Means for retrieving and displaying personal data about calling party
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H04M1/576
associated with a pictorial or graphical representation
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