-
-
-
-
-
-
-
Audio response/report device
-
Patent number 5,832,066
-
Issue date Nov 3, 1998
-
Fujitsu Limited
-
Hiroyuki Sakaguchi
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
-
-
Post office box monitoring system
-
Patent number 4,314,102
-
Issue date Feb 2, 1982
-
Pitney Bowes Inc.
-
Lynnwood Lowe
-
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
-
-
Monitor and control system
-
Patent number 4,095,050
-
Issue date Jun 13, 1978
-
Shaw; Leon O.
-
Ronald Beachem
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Message synthetizer
-
Patent number 4,072,986
-
Issue date Feb 7, 1978
-
AB Gylling & Co.
-
Lars Heidergren
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
3377429
-
Patent number 3,377,429
-
Issue date Apr 9, 1968
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
3346857
-
Patent number 3,346,857
-
Issue date Oct 10, 1967
-
G01 - MEASURING TESTING
-
3098123
-
Patent number 3,098,123
-
Issue date Jul 16, 1963
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
2202517
-
Patent number 2,202,517
-
Issue date May 28, 1940
-
G01 - MEASURING TESTING
-
1765598
-
Patent number 1,765,598
-
Issue date Jun 24, 1930
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE