FRANKLIN JOHN L has a total of 12 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States and Canada. Its main competitors in its focus markets telecommunications, audio-visual technology and measurement are CHIESUKOMU SERVICE ENGINEERING, MONARCH TELEPHONE MFG COMPANY and ROBOPHONE LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 3 |
# | Industry | |
---|---|---|
#1 | Telecommunications | |
#2 | Audio-visual technology | |
#3 | Measurement |
# | Technology | |
---|---|---|
#1 | Telephonic communication | |
#2 | Electromechanical clocks | |
#3 | Advertising | |
#4 | Special information storage |
# | Name | Total Patents |
---|---|---|
#1 | Franklin John L | 12 |
Publication | Filing date | Title |
---|---|---|
US2862065A | Announcing machines | |
US2680785A | Sound head mounting | |
US2444818A | Announcing machine and system | |
US2285425A | Announcing machine and system | |
US2207855A | Phonographic announcing mechanism and system | |
US2011216A | Phonographic announcing mechanism or the like | |
US2005653A | Time controlled mechanism | |
US1921742A | Announcing apparatus | |
US1862475A | Announcing device | |
CA424893A | Announcing machine and system | |
CA365174A | Phonographic announcing mechanism | |
CA399090A | Phonographic announcing mechanism |