4. Locks
  5. Parts, attachments, accessories and adjuncts
  6. Condition indicators

Norman B. DeWalch

Inventor

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Cylinder lock and key with rotating elements

Locks – Operating mechanism – Key
Patent

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Electric meter lock ring

Tools and hardware – Locking or closing device – Lock – latch or bolt
Patent

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Frangible seal

Locks – Parts – attachments – accessories and adjuncts – Condition indicators
Patent

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Lockable meter clamp ring

Locks – Special application – For closures
Patent

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Lockable meter clamp ring

Locks – Special application – For closures
Patent

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Profile ID: LFUS-PAI-P-619838

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