4. Communications: electrical
  5. Condition responsive indicating system
  6. Specific condition

Roger C. Ackerman

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Combination anti-theft lock and alarm

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Hand-held electronic alarm

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
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Visor

Apparel – Guard or protector – For wearer's head
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Profile ID: LFUS-PAI-P-260464

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