Add to ORKGPatent for a simple and effective magneto telephone with a newly designed apparatus that allows the telephone to better receive and transmit calls and "will receive its magnetism from the magnets of the magneto call" (lines 21-22)
Patent for a simple and efficient electric alarm to be used for vault protection. It is a magnet, wh...
Patent for a simple, inexpensive, and durable insulator meant for protecting wires for telephones an...
Citation: Hess, Harry P. and Wolf, George. The modern telephone exchange. Senior thesis, Kansas Stat...
Patent for "a single and effectual magneto telephone bot in receiving and transmitting and improving...
Patent for a new and improved telephone. This design "consists, first, in a set of U-shaped elastic ...
Patent for a new and improved electric call or signal apparatus. This design consists in "a telegrap...
Patent for a machine that telegraphs messages between distant points by means of induced currents th...
Patent for an invention to improve transmitting vocals and other sounds. It is a magneto telephonic ...
Patent for a granulated-electrode phone transmitter that is designed to be simple and "constructed s...
Patent for improvements to telephone transmitters by transmitting the sound waves into electrical cu...
Patent for "a device which will support the weight of the telephone-receiver on the switch-lever whe...
Patent for reduction of movements in an improved telephone call box with illustrations
New ideas that were once classified as science fiction can now exist in reality, thanks to the dawn ...
Patent for Dynamo Electric Machine. "in our improved dynamo-electric machine we combine in the armat...
New ideas that were once classified as science fiction can now exist in reality, thanks to the dawn ...
Patent for a simple and efficient electric alarm to be used for vault protection. It is a magnet, wh...
Patent for a simple, inexpensive, and durable insulator meant for protecting wires for telephones an...
Citation: Hess, Harry P. and Wolf, George. The modern telephone exchange. Senior thesis, Kansas Stat...
Patent for "a single and effectual magneto telephone bot in receiving and transmitting and improving...
Patent for a new and improved telephone. This design "consists, first, in a set of U-shaped elastic ...
Patent for a new and improved electric call or signal apparatus. This design consists in "a telegrap...
Patent for a machine that telegraphs messages between distant points by means of induced currents th...
Patent for an invention to improve transmitting vocals and other sounds. It is a magneto telephonic ...
Patent for a granulated-electrode phone transmitter that is designed to be simple and "constructed s...
Patent for improvements to telephone transmitters by transmitting the sound waves into electrical cu...
Patent for "a device which will support the weight of the telephone-receiver on the switch-lever whe...
Patent for reduction of movements in an improved telephone call box with illustrations
New ideas that were once classified as science fiction can now exist in reality, thanks to the dawn ...
Patent for Dynamo Electric Machine. "in our improved dynamo-electric machine we combine in the armat...
New ideas that were once classified as science fiction can now exist in reality, thanks to the dawn ...
Patent for a simple and efficient electric alarm to be used for vault protection. It is a magnet, wh...
Patent for a simple, inexpensive, and durable insulator meant for protecting wires for telephones an...
Citation: Hess, Harry P. and Wolf, George. The modern telephone exchange. Senior thesis, Kansas Stat...