4. Radiant energy
  5. Invisible radiant energy responsive electric signalling
  6. Infrared responsive

David W. Swift

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Animal trap

Fishing – trapping – and vermin destroying – Traps – Electrocuting
Reexamination Certificate

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Animal trap

Fishing – trapping – and vermin destroying – Traps – Electrocuting
Reexamination Certificate

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Animal trap

Fishing – trapping – and vermin destroying – Traps – Electrocuting
Reexamination Certificate

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Bird feeder

Animal husbandry – Feeder or waterer – Bird feeder
Design Patent

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Bird feeder with modular bird seed reservoirs

Animal husbandry – Feeding device – Hopper and trough
Reexamination Certificate

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Profile ID: LFUS-PAI-P-772452

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