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Contact signaling device has brooch with light emitting diodes for pinning to the clothing that can be selectively illuminated to flash with a blinking incandescent lamp
Contact signaling device has brooch with light emitting diodes for pinning to the clothing that can be selectively illuminated to flash with a blinking incandescent lamp
The alarm has a brooch with light emitting diodes for pinning to the clothing that can be selectively illuminated to flash with a blinking incandescent lamp.
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