4. Deposit and collection receptacles
  5. Letter boxes
  6. Signals

Arthur Darvishian

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Higher efficiency wind motor with receptors of diminished drag c

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to gravity or working fluid force
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Security mailbox

Deposit and collection receptacles – Letter boxes – Signals
Patent

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Security mailbox

Deposit and collection receptacles – Letter boxes – Signals
Patent

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Profile ID: LFUS-PAI-P-1231379

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