Patent for a granulated-electrode phone transmitter that is designed to be simple and "constructed so that the granulated-electrode cannot become displaced from the cell" (lines 10-12)
The invention of Bluetooth transmission has led to the invention of handsfree headset, allowing ever...
Our body is essentially a very sensitive electromagnetic instrument, controlled by highly complex an...
All phones transmit some measure of electromagnetic radiation (EMR). The radiation can even be chang...
Patent for improvements to telephone transmitters by transmitting the sound waves into electrical cu...
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 simple, inexpensive, and durable insulator meant for protecting wires for telephones an...
Patent for "a single and effectual magneto telephone bot in receiving and transmitting and improving...
The increase in the range of laying telephone lines at the beginning of the 20th century raised the ...
[[abstract]]Since 90’s, mobile communications have been developed rapidly. The market of cellular ph...
Patent for a new and improved electric insulator. This design "comprises a pair of fixed metal jaws ...
Patent for "a sounder wherein a finger-lever and sounding-lever are combined together with a spring"...
PATENT: P. H. Cole (Assignee: Integrated Silicon Design Pty Ltd). US 6172608 (PCT/AU1997/000385) fil...
A hearing impaired patient may not able to use the GSM phone or digital mobile phone together with h...
A hearing impaired patient may not able to use the GSM phone or digital mobile phone together with h...
The invention of Bluetooth transmission has led to the invention of handsfree headset, allowing ever...
Our body is essentially a very sensitive electromagnetic instrument, controlled by highly complex an...
All phones transmit some measure of electromagnetic radiation (EMR). The radiation can even be chang...
Patent for improvements to telephone transmitters by transmitting the sound waves into electrical cu...
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 simple, inexpensive, and durable insulator meant for protecting wires for telephones an...
Patent for "a single and effectual magneto telephone bot in receiving and transmitting and improving...
The increase in the range of laying telephone lines at the beginning of the 20th century raised the ...
[[abstract]]Since 90’s, mobile communications have been developed rapidly. The market of cellular ph...
Patent for a new and improved electric insulator. This design "comprises a pair of fixed metal jaws ...
Patent for "a sounder wherein a finger-lever and sounding-lever are combined together with a spring"...
PATENT: P. H. Cole (Assignee: Integrated Silicon Design Pty Ltd). US 6172608 (PCT/AU1997/000385) fil...
A hearing impaired patient may not able to use the GSM phone or digital mobile phone together with h...
A hearing impaired patient may not able to use the GSM phone or digital mobile phone together with h...
The invention of Bluetooth transmission has led to the invention of handsfree headset, allowing ever...
Our body is essentially a very sensitive electromagnetic instrument, controlled by highly complex an...
All phones transmit some measure of electromagnetic radiation (EMR). The radiation can even be chang...