4. Electrical connectors
  5. With coupling movement-actuating means or retaining means in...
  6. Retaining means

Donald M. May

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Tamper-proof electrical receptacle

Electrical connectors – With coupling movement-actuating means or retaining means in... – Retaining means
Patent

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Telephone jack lock-out plug

Telephonic communications – Terminal accessory or auxiliary equipment – Locking device
Patent

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Profile ID: LFUS-PAI-P-884949

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