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Hand-held transmitter for transmitting different signals

  • US 4,218,681 A
  • Filed: 02/13/1979
  • Issued: 08/19/1980
  • Est. Priority Date: 02/13/1978
  • Status: Expired due to Term
First Claim
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1. In a hand-held transmitter for the wireless transmitting of signals for operating remote-controlled garage door installations or the like comprising a signal generating device, an energy source, and a hand-operable transmitter switch built into the transmitter housing, the improvement comprising means for selectively transmitting at least two different signals, said means including a switch which is position-dependent with respect to the force of gravity for selecting one of said at least two different signals to be transmitted.

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