Solar powered bird feeder

作者: Gregory G. Kuelbs

DOI:

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摘要: A bird feeder having a rechargeable electrical power source and solar energy system that collects energy, converts it into uses the to recharge is disclosed. The can be used wide variety of devices, such as microphones, radio receivers or transmitters, cameras, audio recording playback video loud speakers, lighting elements, timing remote controls, motors, etc.

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