Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B9/00—Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user, e.g. bridge to engine room orders in ships
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
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Eye Examination Apparatus
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Illuminated Signs And Luminous Advertising
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Non-Portable Lighting Devices Or Systems Thereof
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