Inventor
LOCKHART JR ROBERT K
US4 patents
Patents
4 patentsUS4247908AJan 27, 1981
Re-linked portable data terminal controller system
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US5347268ASep 13, 1994
Data handler for handling data having multiple data formats
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US5283832AFeb 1, 1994
Paging message encryption
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US4641364AFeb 3, 1987
Function coding via digital addresses in a two-way system
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