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This page displays all 「FI」 in main group H04L15/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H 21/86) | HB | CC | 5K043 | |
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.Keys structurally combined with sound generators [2] | HB | CC | 5K043 | |
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.Apparatus or circuits at the transmitting end | HB | CC | 5K043 | |
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..with a restricted number of keys, e.g. separate key for each type of code element | HB | CC | 5K043 | |
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...with a single key which transmits dots in one position and dashes in a second position | HB | CC | 5K043 | |
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...combined with perforating apparatus | HB | CC | 5K043 | |
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..with keyboard co-operating with code-bars | HB | CC | 5K043 | |
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...combined with perforating apparatus | HB | CC | 5K043 | |
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..with keyboard co-operating with code discs | HB | CC | 5K043 | |
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..Automatic transmitters, e.g. controlled by perforated tape | HB | CC | 5K043 | |
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...with optical sensing means | HB | CC | 5K043 | |
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..Apparatus or circuits for sending one or a restricted number of signals, e.g. distress signals | HB | CC | 5K043 | |
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.Apparatus or circuits at the receiving end | HB | CC | 5K043 | |
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..operating only on reception of predetermined code signals, e.g. distress signals, party-line call signals | HB | CC | 5K043 | |
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..Code reproducing apparatus | HB | CC | 5K043 | |
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...Writing recorders | HB | CC | 5K043 | |
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...Perforating recorders | HB | CC | 5K043 | |
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..Apparatus for recording received coded signals after translation, e.g. as type-characters | HB | CC | 5K043 | |