2081950-A is referenced by 13 patents.

Title
A portable identifying element
Application Number
GB19810020793 19810706
Publication Number
2081950 (A)
Application Date
July 6, 1981
Publication Date
February 24, 1982
Assignee
Philips
IPC
G06K 19/00
H05K 07/20
H01L 23/52
H01L 23/34
G06Q 40/00
G06K 19/10
G06K 19/077
G06K 19/02
B42D 15/10
G06K 19/08
H05K 07/20
H01L 23/538
H01L 23/42
H01L 23/34
G06Q 40/00
G06K 19/10
G06K 19/077
G06K 19/02
B42D 15/10
G06K 19/08
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