4. Communications: electrical
  5. Traffic control indicator
  6. Portable

Melvin A. Holznagel

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Combined periscope and flashlight

Photography and optical equipment – Optical article not elsewhere specified
Patent

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Direct view storage tube having improved readout performance

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Plural load device systems
Patent

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Portable traffic signal

Communications: electrical – Traffic control indicator – Portable
Patent

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Profile ID: LFUS-PAI-P-1214510

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